[{"Name":"Conjugated Systems-introduction","TopicPlaylistFirstVideoID":0,"Duration":null,"Videos":[{"Watched":false,"Name":"Conjugated Systems-Definition","Duration":"1m 13s","ChapterTopicVideoID":23520,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23520.jpeg","UploadDate":"2020-12-17T11:35:59.7530000","DurationForVideoObject":"PT1M13S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24331},{"Watched":false,"Name":"Heat of Hydrogenation of Alkenes","Duration":"2m 44s","ChapterTopicVideoID":23521,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23521.jpeg","UploadDate":"2020-12-17T11:39:17.9670000","DurationForVideoObject":"PT2M44S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24332},{"Watched":false,"Name":"Stability of Similar Alkenes Using Heat of Hydrogenation","Duration":"1m 50s","ChapterTopicVideoID":23522,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23522.jpeg","UploadDate":"2020-12-17T11:41:16.4970000","DurationForVideoObject":"PT1M50S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24333},{"Watched":false,"Name":"Cumulative Double Bonds With Oxygen- Ketene","Duration":"1m 3s","ChapterTopicVideoID":23523,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23523.jpeg","UploadDate":"2020-12-17T11:42:07.7330000","DurationForVideoObject":"PT1M3S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24334},{"Watched":false,"Name":"Cumulative Double Bonds","Duration":"2m 38s","ChapterTopicVideoID":23524,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23524.jpeg","UploadDate":"2020-12-17T11:43:40.4970000","DurationForVideoObject":"PT2M38S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24335},{"Watched":false,"Name":"Delocalization of Electrons","Duration":"58s","ChapterTopicVideoID":23525,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23525.jpeg","UploadDate":"2020-12-17T11:44:16.9930000","DurationForVideoObject":"PT58S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24336},{"Watched":false,"Name":"Non-Conjugated Polyenes","Duration":"53s","ChapterTopicVideoID":23526,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23526.jpeg","UploadDate":"2020-12-17T11:44:35.8670000","DurationForVideoObject":"PT53S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24337},{"Watched":false,"Name":"Resonative Stabilization of Different Systems","Duration":"1m 38s","ChapterTopicVideoID":23527,"CourseChapterTopicPlaylistID":108762,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23527.jpeg","UploadDate":"2020-12-17T11:45:53.8630000","DurationForVideoObject":"PT1M38S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24338}],"Thumbnail":null,"ID":108762},{"Name":"The Allylic Position","TopicPlaylistFirstVideoID":0,"Duration":null,"Videos":[{"Watched":false,"Name":"Allylic Position Reactivity","Duration":"1m 49s","ChapterTopicVideoID":23490,"CourseChapterTopicPlaylistID":108763,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23490.jpeg","UploadDate":"2020-12-17T11:38:38.5430000","DurationForVideoObject":"PT1M49S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24353},{"Watched":false,"Name":"Allylic Carbocation Stability","Duration":"22s","ChapterTopicVideoID":23491,"CourseChapterTopicPlaylistID":108763,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23491.jpeg","UploadDate":"2020-12-17T11:38:56.9800000","DurationForVideoObject":"PT22S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24354},{"Watched":false,"Name":"Allylic Position Radical Substitution","Duration":"1m 19s","ChapterTopicVideoID":23492,"CourseChapterTopicPlaylistID":108763,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23492.jpeg","UploadDate":"2020-12-17T11:41:18.0430000","DurationForVideoObject":"PT1M19S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24355}],"Thumbnail":null,"ID":108763},{"Name":"Physical And Chemical Properties Of Conjugated Aystems","TopicPlaylistFirstVideoID":0,"Duration":null,"Videos":[{"Watched":false,"Name":"Bond Length in Conjugated Systems","Duration":"2m 3s","ChapterTopicVideoID":23493,"CourseChapterTopicPlaylistID":108764,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23493.jpeg","UploadDate":"2020-12-17T11:37:30.8630000","DurationForVideoObject":"PT2M3S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24349},{"Watched":false,"Name":"Chemical Properties of Conjugated Systems","Duration":"24s","ChapterTopicVideoID":23494,"CourseChapterTopicPlaylistID":108764,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23494.jpeg","UploadDate":"2020-12-17T11:37:52.2570000","DurationForVideoObject":"PT24S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24350},{"Watched":false,"Name":"Conformers of Polyenes","Duration":"1m 58s","ChapterTopicVideoID":23495,"CourseChapterTopicPlaylistID":108764,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23495.jpeg","UploadDate":"2020-12-17T11:39:27.3430000","DurationForVideoObject":"PT1M58S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24351},{"Watched":false,"Name":"Hybridization of Conjugated Anions","Duration":"2m 10s","ChapterTopicVideoID":23496,"CourseChapterTopicPlaylistID":108764,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23496.jpeg","UploadDate":"2020-12-17T11:41:48.2570000","DurationForVideoObject":"PT2M10S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24352}],"Thumbnail":null,"ID":108764},{"Name":"Diene Synthesis","TopicPlaylistFirstVideoID":0,"Duration":null,"Videos":[{"Watched":false,"Name":"Diene Synthesis-Wittig Reaction","Duration":"39s","ChapterTopicVideoID":23488,"CourseChapterTopicPlaylistID":108765,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23488.jpeg","UploadDate":"2020-12-17T11:35:52.4470000","DurationForVideoObject":"PT39S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24339},{"Watched":false,"Name":"Diene Synthesis-Pinacol","Duration":"1m 24s","ChapterTopicVideoID":23489,"CourseChapterTopicPlaylistID":108765,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23489.jpeg","UploadDate":"2020-12-17T11:36:32.0030000","DurationForVideoObject":"PT1M24S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24340}],"Thumbnail":null,"ID":108765},{"Name":"Electrophilic Addition to Conjugated Systems","TopicPlaylistFirstVideoID":0,"Duration":null,"Videos":[{"Watched":false,"Name":"HX Addition-1 2 Addition Vs 1 4 Addition","Duration":"2m 5s","ChapterTopicVideoID":23504,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23504.jpeg","UploadDate":"2020-12-17T11:36:50.3630000","DurationForVideoObject":"PT2M5S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24341},{"Watched":false,"Name":"X2 Addition-Kinetic Vs Thermodynamic Products","Duration":"20s","ChapterTopicVideoID":23505,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23505.jpeg","UploadDate":"2020-12-17T11:37:11.1130000","DurationForVideoObject":"PT20S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24342},{"Watched":false,"Name":"Reminder-Kinetic Vs Thermodynamic Products","Duration":"1m 49s","ChapterTopicVideoID":23506,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23506.jpeg","UploadDate":"2020-12-17T11:39:03.0470000","DurationForVideoObject":"PT1M49S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24343},{"Watched":false,"Name":"X2 Addition-1 2 Addition Vs 1 4 Addition","Duration":"1m 36s","ChapterTopicVideoID":23507,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23507.jpeg","UploadDate":"2020-12-17T11:40:51.4070000","DurationForVideoObject":"PT1M36S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24344},{"Watched":false,"Name":"HX Addition-Kinetic Vs Thermodynamic Products","Duration":"1m 53s","ChapterTopicVideoID":23508,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23508.jpeg","UploadDate":"2020-12-17T11:42:07.3430000","DurationForVideoObject":"PT1M53S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24345},{"Watched":false,"Name":"X2 Addition-Energy Diagram","Duration":"44s","ChapterTopicVideoID":23509,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23509.jpeg","UploadDate":"2020-12-17T11:42:56.2770000","DurationForVideoObject":"PT44S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24346},{"Watched":false,"Name":"Addition Reactions- Equilibrium Effect","Duration":"42s","ChapterTopicVideoID":23510,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23510.jpeg","UploadDate":"2020-12-17T11:43:42.1200000","DurationForVideoObject":"PT42S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24347},{"Watched":false,"Name":"Birch Reaction-1 4 Reduction","Duration":"1m 6s","ChapterTopicVideoID":23511,"CourseChapterTopicPlaylistID":108766,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23511.jpeg","UploadDate":"2020-12-17T11:44:07.8500000","DurationForVideoObject":"PT1M6S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24348}],"Thumbnail":null,"ID":108766},{"Name":"Alpha Beta-Unsaturated Ketones and Aldehydes","TopicPlaylistFirstVideoID":0,"Duration":null,"Videos":[{"Watched":false,"Name":"Alpha Beta-Unsaturated Ketones and Aldehydes","Duration":"1m 8s","ChapterTopicVideoID":23497,"CourseChapterTopicPlaylistID":108767,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23497.jpeg","UploadDate":"2020-12-17T11:35:29.3270000","DurationForVideoObject":"PT1M8S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24324},{"Watched":false,"Name":"Addition Reactions of Alpha Beta-Unsaturated Ketones and Aldehydes","Duration":"45s","ChapterTopicVideoID":23498,"CourseChapterTopicPlaylistID":108767,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23498.jpeg","UploadDate":"2020-12-17T11:35:52.6970000","DurationForVideoObject":"PT45S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24325},{"Watched":false,"Name":"HCN Addition-Mechanism","Duration":"1m 27s","ChapterTopicVideoID":23499,"CourseChapterTopicPlaylistID":108767,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23499.jpeg","UploadDate":"2020-12-17T11:37:20.1770000","DurationForVideoObject":"PT1M27S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24326},{"Watched":false,"Name":"H2O Addirion-Mechanism","Duration":"1m 5s","ChapterTopicVideoID":23500,"CourseChapterTopicPlaylistID":108767,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23500.jpeg","UploadDate":"2020-12-17T11:38:37.1200000","DurationForVideoObject":"PT1M5S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24327},{"Watched":false,"Name":"Grignard Reagent Reaction with Alpha Beta-Unsaturated Ketones and Aldehydes","Duration":"1m 51s","ChapterTopicVideoID":23501,"CourseChapterTopicPlaylistID":108767,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23501.jpeg","UploadDate":"2020-12-17T11:41:31.8800000","DurationForVideoObject":"PT1M51S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24328},{"Watched":false,"Name":"Other Organometallic Reagents Reaction with Alpha Beta-Unsaturated Ketones and Aldehydes","Duration":"34s","ChapterTopicVideoID":23502,"CourseChapterTopicPlaylistID":108767,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23502.jpeg","UploadDate":"2020-12-17T11:42:26.4630000","DurationForVideoObject":"PT34S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24329},{"Watched":false,"Name":"Reduction of Alpha Beta-Unsaturated Ketones and Aldehydes","Duration":"53s","ChapterTopicVideoID":23503,"CourseChapterTopicPlaylistID":108767,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23503.jpeg","UploadDate":"2020-12-17T11:43:22.2170000","DurationForVideoObject":"PT53S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24330}],"Thumbnail":null,"ID":108767},{"Name":"The Diels-Alder Reaction","TopicPlaylistFirstVideoID":0,"Duration":null,"Videos":[{"Watched":false,"Name":"Diels-Alder Reaction- Definition","Duration":"1m 23s","ChapterTopicVideoID":23512,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23512.jpeg","UploadDate":"2020-12-17T11:37:35.2230000","DurationForVideoObject":"PT1M23S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24356},{"Watched":false,"Name":"Diels-Alder Reaction- Examples","Duration":"57s","ChapterTopicVideoID":23513,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23513.jpeg","UploadDate":"2020-12-17T11:38:36.5570000","DurationForVideoObject":"PT57S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24357},{"Watched":false,"Name":"Diels-Alder Reaction- Stereoselectivity","Duration":"58s","ChapterTopicVideoID":23514,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23514.jpeg","UploadDate":"2020-12-17T11:40:13.4830000","DurationForVideoObject":"PT58S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24358},{"Watched":false,"Name":"Diels-Alder Reaction- Dienophile Reactivity","Duration":"56s","ChapterTopicVideoID":23515,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23515.jpeg","UploadDate":"2020-12-17T11:41:17.1200000","DurationForVideoObject":"PT56S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24359},{"Watched":false,"Name":"Diels-Alder Reaction- Bridged Bicylic Product","Duration":"1m ","ChapterTopicVideoID":23516,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23516.jpeg","UploadDate":"2020-12-17T11:42:18.6800000","DurationForVideoObject":"PT1M","Description":null,"VideoComments":[],"Subtitles":[],"ID":24360},{"Watched":false,"Name":"Bicyclic Molecules- Nomenclature","Duration":"2m 56s","ChapterTopicVideoID":23517,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23517.jpeg","UploadDate":"2020-12-17T11:44:12.6200000","DurationForVideoObject":"PT2M56S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24361},{"Watched":false,"Name":"Diels-Alder Reaction- Stereoisomeric Products- Endo Vs Exo","Duration":"1m 30s","ChapterTopicVideoID":23518,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23518.jpeg","UploadDate":"2020-12-17T11:44:49.1800000","DurationForVideoObject":"PT1M30S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24362},{"Watched":false,"Name":"Retro Diels-Alder Reaction","Duration":"52s","ChapterTopicVideoID":23519,"CourseChapterTopicPlaylistID":108768,"HasSubtitles":false,"ThumbnailPath":"https://www.proprep.uk/Images/Videos_Thumbnails/23519.jpeg","UploadDate":"2020-12-17T11:45:20.5100000","DurationForVideoObject":"PT52S","Description":null,"VideoComments":[],"Subtitles":[],"ID":24363}],"Thumbnail":null,"ID":108768}]

[{"ID":108762,"Videos":[24331,24332,24333,24334,24335,24336,24337,24338]},{"ID":108763,"Videos":[24353,24354,24355]},{"ID":108764,"Videos":[24349,24350,24351,24352]},{"ID":108765,"Videos":[24339,24340]},{"ID":108766,"Videos":[24341,24342,24343,24344,24345,24346,24347,24348]},{"ID":108767,"Videos":[24324,24325,24326,24327,24328,24329,24330]},{"ID":108768,"Videos":[24356,24357,24358,24359,24360,24361,24362,24363]}];

[24341,24342,24343,24344,24345,24346,24347,24348];

1

4