{"title":"TCCA/ ncs促进β， γ-不饱和化合物级联环化:异恶唑啉和吡唑啉的合成","authors":"Khidir Tajelseir Othman, Nibras Ahmed Elaas","doi":"10.4236/ijoc.2021.114013","DOIUrl":null,"url":null,"abstract":"2-Isoxazolines and 2-pyrazolines have been derived from oxime and hydrazone derivatives reacted with N-chlorosuccinimide (NCS) and trichloroisocyanuric acid (TCCA). Cyclization strategy is developed for the reaction of β, γ-unsaturated hydrazones with the TCCA to drive 2-pyrazolines and the reaction of β, γ-unsaturated oximes with NCS to derive 2-isoxalzolines. Structures of all new 2-isoxazolines and 2-pyrazolines have been elucidated by microanalyses, 1H, 13C NMR and Mass spectroscopies.","PeriodicalId":64796,"journal":{"name":"有机化学国际期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"TCCA/NCS-Promoted Cascade Cyclization of β, γ-Unsaturated Compounds: Synthesis of Isoxazolines and Pyrazolines\",\"authors\":\"Khidir Tajelseir Othman, Nibras Ahmed Elaas\",\"doi\":\"10.4236/ijoc.2021.114013\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"2-Isoxazolines and 2-pyrazolines have been derived from oxime and hydrazone derivatives reacted with N-chlorosuccinimide (NCS) and trichloroisocyanuric acid (TCCA). Cyclization strategy is developed for the reaction of β, γ-unsaturated hydrazones with the TCCA to drive 2-pyrazolines and the reaction of β, γ-unsaturated oximes with NCS to derive 2-isoxalzolines. Structures of all new 2-isoxazolines and 2-pyrazolines have been elucidated by microanalyses, 1H, 13C NMR and Mass spectroscopies.\",\"PeriodicalId\":64796,\"journal\":{\"name\":\"有机化学国际期刊(英文)\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"有机化学国际期刊(英文)\",\"FirstCategoryId\":\"1089\",\"ListUrlMain\":\"https://doi.org/10.4236/ijoc.2021.114013\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"有机化学国际期刊(英文)","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.4236/ijoc.2021.114013","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
TCCA/NCS-Promoted Cascade Cyclization of β, γ-Unsaturated Compounds: Synthesis of Isoxazolines and Pyrazolines
2-Isoxazolines and 2-pyrazolines have been derived from oxime and hydrazone derivatives reacted with N-chlorosuccinimide (NCS) and trichloroisocyanuric acid (TCCA). Cyclization strategy is developed for the reaction of β, γ-unsaturated hydrazones with the TCCA to drive 2-pyrazolines and the reaction of β, γ-unsaturated oximes with NCS to derive 2-isoxalzolines. Structures of all new 2-isoxazolines and 2-pyrazolines have been elucidated by microanalyses, 1H, 13C NMR and Mass spectroscopies.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
