申请人:——
公开号:US20010020092A1
公开(公告)日:2001-09-06
The present invention relates to a compound of the formula (I)
1
wherein
R
1
is an unsubstituted or substituted hydrocarbon radical having a total of 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms,
R
2
is an unsubstituted or substituted hydrocarbon radical having a total of 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms, or the group
NR
1
R
2
is a heterocyclic ring having 3 to 8 ring atoms which is unsubstituted or substituted and contains the nitrogen atom of the group NR
1
R
2
as ring heteroatom and may also contain one or two further ring heteroatoms from the group consisting of N, O and S, and
Q is H or a cation.
The compounds of the present invention can advantageously be used for the preparation of sulfonylureas and their precursors such as sulfochlorides or sulfonamides.
本发明涉及一种式(I)的化合物,其中R1是未取代或取代的烃基,其总碳原子数为1到10个,优选为1到6个碳原子,R2是未取代或取代的烃基,其总碳原子数为1到10个,优选为1到6个碳原子,或者NR1R2是具有3到8个环原子的杂环,未取代或取代,并且含有NR1R2的氮原子作为环杂原子,还可以包含来自N、O和S的一到两个进一步的环杂原子,Q为H或阳离子。本发明的化合物可以有利地用于制备磺酰脲及其前体,如磺酰氯或磺酰胺。