In situ protection and deprotection of amines for iron catalyzed oxidative amidation of aldehydes
摘要:
An environmentally friendly synthetic route by the application of CO2 to synthesize amides via in situ protection and deprotection of amines for iron catalyzed oxidative amidation of aldehydes was developed. Various secondary and tertiary amides have been synthesized in moderate to good yields under mild and neutral reaction conditions. The use of amine hydrochloride salts and hence base for neutralization step is totally avoided in this protocol. (C) 2015 Elsevier Ltd. All rights reserved.
QUINUCLIDINE DERIVATIVES BINDING TO MUCARINIC M3 RECEPTORS
申请人:Collingwood Stephen Paul
公开号:US20100041887A1
公开(公告)日:2010-02-18
Compounds of formula I
in salt or zwitterionic form wherein, wherein R
1
, R
2
, R
3
, and R
4
have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
Quinuclidine derivatives binding to mucarinic m3 receptors
申请人:Collingwood Paul Stephen
公开号:US20070060563A1
公开(公告)日:2007-03-15
Compounds of formula I
in salt or zwitterionic form wherein, wherein R
1
, R
2
, R
3
, and R
4
have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
In situ protection and deprotection of amines for iron catalyzed oxidative amidation of aldehydes
作者:Thulasiram Bathini、Vikas S. Rawat、Sreedhar Bojja
DOI:10.1016/j.tetlet.2015.08.066
日期:2015.10
An environmentally friendly synthetic route by the application of CO2 to synthesize amides via in situ protection and deprotection of amines for iron catalyzed oxidative amidation of aldehydes was developed. Various secondary and tertiary amides have been synthesized in moderate to good yields under mild and neutral reaction conditions. The use of amine hydrochloride salts and hence base for neutralization step is totally avoided in this protocol. (C) 2015 Elsevier Ltd. All rights reserved.