申请人:Liang Yangang
公开号:US20100331547A1
公开(公告)日:2010-12-30
An organic compound of formula E is made from a process comprising:
reacting a compound of formula A and a compound of formula B to form a compound of formula C; and
reacting one of the compound of formula C and the compound of formula D with a first boron esterification reagent to generate a boronic acid or a boronic ester to react with another of the compound of formula C and the compound of formula D to form a compound of formula E;
wherein R
1
, R
2
, and R
3
are, independently at each occurrence, a C
1
-C
20
aliphatic radical, a C
3
-C
20
aromatic radical, or a C
3
-C
20
cycloaliphatic radical;
X1 is chloro, bromo, trifluoromethanesulfonate, or hydroxy;
X2 is chloro, bromo, iodo; and when X1 is chloro, X2 is bromo or iodo, when X1 is bromo, X2 is iodo, when X1 is hydroxy, X2 is chloro, bromo or iodo, when X1 is trifluoromethanesulfonate, X2 is bromo or iodo;
X3 is a boronic acid or boronic ester;
X is CH or N and when X is CH, at least one of R
2
is pyridyl;
X4 is chloro, bromo, trifluoromethanesulfonate, or hydroxy;
X5 is chloro, bromo, iodo; and when X4 is chloro, X5 is bromo or iodo, when X4 is bromo, X5 is iodo, when X4 is hydroxy, X5 is chloro, bromo or iodo, when X4 is trifluoromethanesulfonate, X5 is bromo or iodo;
a, and c are, independently at each occurrence, an integer ranging from 0-4; and b is an integer ranging from 0-3.
化学式为E的有机化合物是通过以下过程制备的:将化合物A的化合物和化合物B的化合物反应以形成化合物C;将化合物C中的一种和化合物D的化合物之一与第一硼酯化试剂反应,生成硼酸或硼酯,再与化合物C和化合物D的另一种反应,形成化合物E;其中,R1、R2和R3在每次出现时独立地为C1-C20脂肪基、C3-C20芳香基或C3-C20环脂肪基;X1为氯、溴、三氟甲磺酸酯或羟基;X2为氯、溴或碘;当X1为氯时,X2为溴或碘;当X1为溴时,X2为碘;当X1为羟基时,X2为氯、溴或碘;当X1为三氟甲磺酸酯时,X2为溴或碘;X3为硼酸或硼酯;X为CH或N,当X为CH时,至少有一个R2为吡啶基;X4为氯、溴、三氟甲磺酸酯或羟基;X5为氯、溴或碘;当X4为氯时,X5为溴或碘;当X4为溴时,X5为碘;当X4为羟基时,X5为氯、溴或碘;当X4为三氟甲磺酸酯时,X5为溴或碘;a和c在每次出现时独立地为0-4的整数;b为0-3的整数。