The present invention suggests 2-oxo-1,3-dioxolane-4-carboxamides of formula (I),
in which R
2
can be, inter alia, an n-valent radical (n>1) which is substituted with n−1 further 2-oxo-1,3-dioxolane-4-carboxamide groups of general formula (II),
to processes for the preparation of these 2-oxo-1,3-dioxolane-4-carboxamides, to processes for the preparation of the 2-oxo-1,3-dioxolane-4-carboxylic acids of formula (III),
which are suitable starting materials for the above processes, and to the use of said 2-oxo-1,3-dioxolane-4-carboxamides for the preparation of (poly)hydroxyurethanes, -hydroxycarbonates and -hydroxysulfanylformates, and also as end groups for the blocking of amines.
本发明提出了公式(I)的2-氧代-1,3-二氧杂
环戊烷-4-羧酰胺,其中R2可以是n-价基团(n>1),该基团被n-1个进一步的公式(II)的2-氧代-1,3-二氧杂
环戊烷-4-羧酰胺基团取代,本发明还涉及制备这些2-氧代-1,3-二氧杂
环戊烷-4-羧酰胺的方法,制备公式(III)的2-氧代-1,3-二氧杂
环戊烷-4-
羧酸,该酸是上述方法的合适起始材料,以及使用上述2-氧代-1,3-二氧杂
环戊烷-4-羧酰胺制备(聚)羟基
脲、-羟基
碳酸酯和-羟基磺酰基
甲酸酯,以及作为胺的阻塞末端基团。