Direct Pd-Catalyzed Cross-Coupling of Functionalized Organoaluminum Reagents
作者:Klaus Groll、Tobias D. Blümke、Andreas Unsinn、Diana Haas、Paul Knochel
DOI:10.1002/anie.201205987
日期:2012.10.29
A handsome couple: Through the use of the simple Pd catalyst [Pd(tmpp)2Cl2] (tmpp=tris(2,4,6‐trimethoxyphenyl)phosphine) and THF/DMF as solvent, various aryl‐, heteroaryl‐, benzyl‐ and alkylaluminum reagents can be readily cross‐coupled with aryl or heteroaryl iodides, bromides, and nonaflates, and in special cases even with chlorides and triflates. This cross‐coupling tolerates free NH2 groups, aldehydes
The invention is concerned with the compounds of formula (I):
and salts thereof, wherein X, Y, Z, R
1
, R
2
, R
3
, R
3′
, R
4
, R
5
and R
6
are defined in the detailed description and claims. In addition, the present invention relates to methods of manufacturing and using the compounds of Formula (I) as well as pharmaceutical compositions containing such compounds. The compounds may be useful in treating diseases and conditions mediated by TRPA1, such as pain.