《Enantioselective synthesis of chiral α-alkynylated thiazolidones by tandem S-addition/acetalization of alkynyl imines》 was published in Organic & Biomolecular Chemistry in 2020. These research results belong to Wang, Mei-Xin; Liu, Juan; Liu, Zhen; Wang, Yingcheng; Yang, Qi-Qiong; Shan, Wenyu; Deng, Yu-Hua; Shao, Zhihui. Reference of tert-Butyl carbamate The article mentions the following:
A SPINOL-derived chiral phosphoric acid catalyzed asym. formal [2+3]-annulation of in-situ generated alkynyl imines and 1,4-dithiane-2,5-diol was developed to afford enantiopure α-alkynylated thiazolidones with up to 72% yield and 98.5 : 1.5 er. This tandem annulation involved a tandem S-addition of alkynyl imines/intramol. acetalization, followed by PDC-mediated oxidation The α-alkynylated thiazolidones facilely afforded the corresponding chiral α-alkynylated or α-alkenylated cyclic sulfoxides via further elaboration. The experimental part of the paper was very detailed, including the reaction process of tert-Butyl carbamate(cas: 4248-19-5Reference of tert-Butyl carbamate)
tert-Butyl carbamate(cas: 4248-19-5) belongs to anime. In organic chemistry, amines are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia (NH3), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or aryl group (these may respectively be called alkylamines and arylamines; amines in which both types of substituent are attached to one nitrogen atom may be called alkylarylamines).Reference of tert-Butyl carbamate
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