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-diox-olane-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.
本发明提出了式(I)的2-氧代-1,3-二氧杂环戊
酰卤化物,
其中X从F、Cl、Br、I和它们的混合物中选择,优选为Cl,所述2-氧代-1,3-二氧杂环戊
酰卤化物的制备方法,所述2-氧代-1,3-二氧杂环戊
酰卤化物的用途用于制备式(II)的2-氧代-1,3-二氧杂
环戊酸酯,
所述2-氧代-1,3-二氧杂环戊
酰卤化物的用途用于制备式(III)的2-氧代-1,3-二氧-杂环戊酰胺,
以及所述2-氧代-1,3-二氧杂环戊
酰卤化物的用途作为胺的阻滞剂。