A Pd-catalyzed, boron ester-mediated, reductive cross-coupling of two aryl halides to synthesize tricyclic biaryls
作者:Zhilong Chen、Xiaodong Wang
DOI:10.1039/c7ob01237c
日期:——
Tricyclic biaryls are important scaffold structures in many natural products and lead compounds in drug discovery. The formation of a biaryl unit is often the key step for the synthesis of tricyclic biaryls. Despite significant progress toward the synthesis of biaryl compounds in recent years, the direct cross-coupling of two different aryl halides is still challenging and robust methods are lacking
Metal-Organic Framework Based on Copper and Carboxylate-Imidazole as Robust and Effective Catalyst in the Oxidative Amidation of Carboxylic Acids and Formamides
作者:María Albert-Soriano、Isidro M. Pastor
DOI:10.1002/ejoc.201600991
日期:2016.10
The Spanish Ministerio de Economia y Competitividad (CTQ2015-66624-P) and the University of Alicante.
西班牙经济与竞争部长 (CTQ2015-66624-P) 和阿利坎特大学。
Chemoselective Synthesis of α-Amino-α-cyanophosphonates by Reductive <i>Gem</i>-Cyanation–Phosphonylation of Secondary Amides
作者:Ting-Ting Chen、Ai-E Wang、Pei-Qiang Huang
DOI:10.1021/acs.orglett.9b01257
日期:2019.5.17
A novel approach to α-amino-α-cyanophosphonates has been developed. The method features a Tf2O-mediated reductive geminal cyanation/phosphonylation of secondaryamides. Mild reaction conditions, high bond-forming efficiency, inexpensive readily available starting materials, and good to excellent yields with wide functional group compatibility constitute the main advantages of this method. The protocol
A new strategy to construct allylamines through reductive alkenylation of secondary amides with enamines is reported. The method features the use of trifluoromethanesulfonic anhydride as an activation reagent of amides, and enamines as unconventional alkenylation reagents. In this manner, enamines serve as surrogates of alkene carbanions instead of the classical enolates equivalents. A possible mechanism
The present invention provides a novel compound having an antiviral action, in particular, an HIV replication inhibiting action, as well as a pharmaceutical composition, in particular, an anti-HIV agent.
wherein, a broken line means the presence or absence of a bond; R
1
is substituted or unsubstituted alkyl etc., R
2
is substituted or unsubstituted alkyloxy etc.; n is 1 or 2; R
3
is a substituted or unsubstituted aromatic carbocyclic group; R
4
is a hydrogen atom etc.; R
5
is a substituted or unsubstituted aromatic carbocyclic group etc.; Y is a single bond etc.; R
6
is substituted or unsubstituted alkyl; R
7
is —Z—R
71
etc.; Z is —NR
72
—CO— etc.; R
71
is substituted or unsubstituted alkyl etc.; R
72
is a hydrogen atom etc.