申请人:Meudt Andreas
公开号:US20080221357A1
公开(公告)日:2008-09-11
A method for producing unprotected or carbamate-protected amines of formulae (II) and (III) or R
1
—NH
2
(II) or R
1
—NHCO
2
R
2
(III) by reacting hydroxamic acids of formula (I) (R
1
CONHOH) with a) alkylphosphonic acid anhydrite's, b) alcohol R
2
OH and c) optionally with a base, at a temperature ranging from 100 to +120° C., wherein the hydroxamic acid (I) is produced prior to or during reacting (in situ) and R
1
is an optionally substituted linear or branched C
1
-C
12
alkyl radical, substituted C
3
-C
10
cycloalkyl, alkenyl, aryl or heteroaryl radical and R
2
is an open-chain, cyclic or branched allyl, aryl or C
1
to C
12
-alkyl radicals, or aryloxy, allyloxy or alkoxy radical possibly substituted with open-chain, cyclic or branched C
1
to C
12
-alkyl radicals.
一种生产未保护或氨基甲酸酯保护的化合物的方法,化合物的式子为(II)和(III)或R1—NH2(II)或R1—NHCO2R2(III),通过将式子为(I)(R1CONHOH)的羟肟酸与a)烷基磷酸酐、b)醇R2OH和c)可选地与碱在温度范围为100至+120°C下反应而制得,其中羟肟酸(I)在反应之前或期间(原位)产生,R1是可选地取代的直链或支链C1-C12烷基基团,取代的C3-C10环烷基、烯烃、芳基或杂芳基基团,R2是开链、环状或支链烯丙基、芳基或C1到C12烷基基团,或芳氧基、烯丙氧基或烷氧基,可能取代开链、环状或支链C1到C12烷基基团。