The present invention relates to halo sulfonyl aryl boronates of the general formula (I):
1
wherein Arylene designates a carbocyclic or heterocyclic, aromatic ring system comprising 1-3 rings;
R
1
, R
2
and R
3
are, independently, hydrogen, C
1-6
alkyl, C
1-6
alkoxy, halogen, nitro, cyano or phenyl;
X is fluoro, chloro or bromo; and
Y is a boroxine moiety attached via a bond from Arylene to one of the boron atoms of a boroxine ring which ring has a group of the formula—Arylene(R
1
)(R
2
)(R
3
)SO
2
X, wherein Arylene, R
1
, R
2
, R
3
and X are as defined above, at each of the other two boron atoms of the boroxine ring, or Y is a boronic acid group or a boronic ester group.
The invention also relates to the preparation of the compounds of formula (I) and to their use in organic synthesis.
本发明涉及一般式(I)的卤磺酰基芳基
硼酸酯:
其中Arylene表示一个含有1-3个环的
碳环或杂环芳香环系统;
R1、R2和R3分别为
氢、C1-6烷基、C1-6烷
氧基、卤素、硝基、
氰基或
苯基;
X为
氟、
氯或
溴;以及
Y是通过一条键连接到Arylene上的
硼氧杂环基,该环具有一个式为Arylene(R1)(R2)(R3)SO2X的基团,在
硼氧杂环的另外两个
硼原子上,或Y是
硼酸基团或
硼酯基团。
该发明还涉及一般式(I)化合物的制备以及它们在有机合成中的应用。