申请人:Construction Research & Technology, GmbH
公开号:US20160145232A1
公开(公告)日:2016-05-26
The present invention suggests 2-oxo-1,3-dioxolane-4-acyl halides of formula (I),
wherein X is selected from F, Cl, Br, I and mixtures thereof, preferably Cl, processes for the preparation of said 2-oxo-1,3-dioxolane-4-acyl halides, the use of said 2-oxo-1,3-dioxolane-4-acyl halides for the preparation of 2-oxo-1,3-dioxolane-4-carboxylic esters of formula (II),
the use of said 2-oxo-1,3-dioxolane-4-acyl halides for the preparation of 2-oxo-1,3-dioxolane-4-carboxamides of formula (III),
and also the use of said 2-oxo-1,3-dioxolane-4-acyl halides as agents for the blocking of amines.
本发明提供了式(I)的2-氧代-1,3-二氧杂环戊烷-4-酰卤化物,其中X选自F、Cl、Br、I和其混合物,优选Cl,以及制备该2-氧代-1,3-二氧杂环戊烷-4-酰卤化物的工艺,使用该2-氧代-1,3-二氧杂环戊烷-4-酰卤化物制备式(II)的2-氧代-1,3-二氧杂环戊烷-4-羧酸酯,使用该2-氧代-1,3-二氧杂环戊烷-4-酰卤化物制备式(III)的2-氧代-1,3-二氧杂环戊烷-4-羧酰胺,以及使用该2-氧代-1,3-二氧杂环戊烷-4-酰卤化物作为胺的阻断剂。