Gold-Catalyzed Amide/Carbamate-Linked N,O-Acetal Formation with Bulky Amides and Alcohols
Gold-Catalyzed Amide/Carbamate-Linked N,O-Acetal Formation with Bulky Amides and Alcohols
复制标题
金催化酰胺/氨基甲酸酯连接的 N,O-缩醛与大体积酰胺和醇的形成
DOI:
10.1021/acs.joc.0c02640
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Doi Takayuki
中科院分区:
文献类型:
--
作者:
Ohsawa Kosuke;Ochiai Shota;Kubota Junya;Doi Takayuki
A gold-catalyzedN,O-acetal formation was established to construct an amide/carbamate-linkedN,O-acetal substructure with bulky alcohols. The acyliminium cation species generated fromo-alkynylbenzoic acid ester in the presence of a gold catalyst is highly reactive and underwent nucleophilic attack of various bulky alcohols and phenols at room temperature under neutral conditions, leading to the correspondingN,O-acetals in yields of 34–89% with good functional group tolerance.