SDS of cas: 4248-19-5In 2022 ,《Regioselective Cycloaddition and Substitution Reaction of Tertiary Propargylic Alcohols and Heteroareneboronic Acids via Acid Catalysis》 appeared in Organic Letters. The author of the article were Bai, Jian-Fei; Tang, Jianbo; Gao, Xiaolong; Jiang, Zhi-Jiang; Tang, Bencan; Chen, Jia; Gao, Zhanghua. The article conveys some information:
An acid-catalyzed formal cycloaddition and dehydrative substitution reaction of tertiary propargylic alcs. and heteroareneboronic acids was reported. The properties of the substituents on the alkynyl moiety determines the regioselectivity of the reaction, which could selectively construct fused heterocycles, tetrasubstituted allenes, or 1,3-dienes. This reaction proceeded efficiently with a wide array of substrate scope in up to 89% yield. A significant advantage of this protocol is the transition-metal-free and mild conditions needed. In the part of experimental materials, we found many familiar compounds, such as tert-Butyl carbamate(cas: 4248-19-5SDS of cas: 4248-19-5)
tert-Butyl carbamate(cas: 4248-19-5) belongs to anime. Acylation is one of the most important reactions of primary and secondary amines; a hydrogen atom is replaced by an acyl group (a group derived from an acid, such as RCOOH or RSO3H, by removal of ―OH, such as RC(=O)―, RS(O)2―, and so on). Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids.SDS of cas: 4248-19-5
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics