Boronic esters have long been considered as poor partners in cross-coupling reactions with arene diazoniums. Here is reported an unprecedented application of self-activated boronic esters in a base-free cross-coupling reaction with diazonium salts under mild and user friendly conditions.
The invention provides methods of treating a bacterial infection in a mammal comprising administering to the mammal a compound of formula I:
wherein A, B, and X have any of the meanings defined in the specification; or a pharmaceutically acceptable salt thereof, as well as novel compounds of formula I and salts thereof and pharmaceutical compositions comprising a compound of formula I or a pharmaceutically acceptable salt thereof.
NOVEL AROMATIC HETEROCYCLIC DERIVATIVE, ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL, ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL SOLUTION, AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20150214491A1
公开(公告)日:2015-07-30
A novel aromatic heterocyclic derivative has a specific structure in its molecule which combines a hole transporting ability and an electron transporting ability. The aromatic heterocyclic derivative is used in a material for an organic electroluminescence device, a solution of a material for an organic electroluminescence device, and an organic electroluminescence device.