Rhodium(III)-Catalyzed Intermolecular Direct Amination of Aromatic C–H Bonds withN-Chloroamines
摘要:
A Rh(III)-catalyzed direct aromatic C-H amination is achieved using N-chloroamines as a reagent. Furthermore, we also developed a one-pot amination protocol Involving In situ chlorination of the secondary amines. The catalytic amination operates at mild conditions with excellent functional group tolerance and regioselectivity.
Rhodium(III)-Catalyzed Intermolecular Direct Amination of Aromatic C–H Bonds withN-Chloroamines
摘要:
A Rh(III)-catalyzed direct aromatic C-H amination is achieved using N-chloroamines as a reagent. Furthermore, we also developed a one-pot amination protocol Involving In situ chlorination of the secondary amines. The catalytic amination operates at mild conditions with excellent functional group tolerance and regioselectivity.
Cyanoamidine P2X7 antagonists for the treatment of pain
申请人:Carroll A. William
公开号:US20060025614A1
公开(公告)日:2006-02-02
Novel cyanoamidines compounds of formula (I) and (II)
and their derivatives wherein R
1
-R
12
are as defined in the specification act as antagonists of the P2X
7
receptor. These compounds are particularly useful in the treatment of pain, inflammation and neurodegeneration states.
A Rh-catalyzed intermolecular coupling of diazomalonates with arene C-H bonds is reported. The reaction is initiated by electrophilic C-H activation, which is followed by coupling of the arylrhodium(III) complex with the diazomalonate. In most cases, arenes with oximes, carboxylic acids, and amines as directing groups cross-couple with diazomalonates with excellent regioselectivities and functional
Cyanoamidine P2X7 Antagonists for the Treatment of Pain
申请人:Carroll A. William
公开号:US20070232686A1
公开(公告)日:2007-10-04
Novel cyanoamidines compounds of formula (I) and (II)
and their derivatives wherein R
1
-R
12
are as defined in the specification act as antagonists of the P2X
7
receptor. These compounds are particularly useful in the treatment of pain, inflammation and neurodegeneration states.