Supported-Pd catalyzed tandem approach for N-arylbenzamides synthesis
作者:Sheetal、Ajay Kumar Sharma、Shaifali、Dhananjay Bhattacherjee、Navneet Sharma、Kousik Giri、Pralay Das
DOI:10.1016/j.mcat.2021.111948
日期:2021.11
Aryl iodides as dual arylating agent for C-terminal from oxalic acid [(CO2H)2] and N-terminal from sodium azide (NaN3) for N-aryl benzamides (Ar-CO-NH-Ar) synthesis is a rare invention which has been attempted successfully under this study. A single step tandem approach for the synthesis of N-aryl benzamides has been developed through bifunctional transformation of aryl iodides with in-situ CO from
palladium catalyzed cascade azidation/carbonylation of arylhalides for the synthesis of amides was developed. Both iodo‐ and bromobenzene derivatives were transformed to the corresponding amides using PdCl2/xantphos as the catalyst system and sodium azide as the nitrogen‐source. The reaction proceeds via a cascade azidation/carbonylation process. A range of alkyl and halogen substituted amides were prepared
BENZAMIDE DERIVATIVES AND THEIR USE FOR TREATING CNS DISORDERS
申请人:Galley Guido
公开号:US20090036420A1
公开(公告)日:2009-02-05
The present invention relates to methods of treating CNS disorders with a compound of formula I
wherein
X, R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, and R
8
are as defined in the specification and pharmaceutically acceptable acid addition salts thereof.
The present invention includes a method of inhibiting, suppressing or preventing HBV infection in an individual in need thereof, comprising administering to the individual a therapeutically effective amount of at least one compound of the invention.