W(CO)5(L)-Catalyzed Cyclization of α-Alkynyl-β-dicarbonyl Derivatives: Synthesis of Methylenelactones, Furans, and Methylenecyclopentanes
摘要:
W(CO)(5)(L)-Catalyzed cyclization of alpha-alkynyl-beta-keto acids, keto esters, and diketones provides methylenelactones, furans, and methylenecyclopentanes via 5-exo-dig cyclization. Also, the present approach can be further applied to 5-endo-dig cyclization.
A FACILE SYNTHESIS OF 1,3-DICARBONYL COMPOUNDS FROM 1-ALKYNE AND ACID ANHYDRIDE PROMOTED BY DICHLORO-BIS(TRIFLUOROMETHANESULFONATO)TITANIUM(IV)
作者:Yoo Tanabe、Teruaki Mukaiyama
DOI:10.1246/cl.1985.673
日期:1985.5.5
1,3-Dicarbonyl compounds are prepared in high yields by acylation of 1-alkyne derivatives with acid anhydride in the presence of dichloro-bis(trifluoromethanesulfonato)titanium(IV), followed by aqueous work up.
TANABE, YOO;MUKAIYAMA, TERUAKI, CHEM. LETT., 1985, N 5, 673-676
作者:TANABE, YOO、MUKAIYAMA, TERUAKI
DOI:——
日期:——
[EN] PHOTOREACTIVE LIGANDS AND USES THEREOF<br/>[FR] LIGANDS PHOTORÉACTIFS ET UTILISATIONS
申请人:SCRIPPS RESEARCH INST
公开号:WO2018136555A2
公开(公告)日:2018-07-26
Disclosed herein are methods for identifying proteins as targets for interaction with a small molecule ligand. Also disclosed herein are small molecule ligands and compositions for use in profiling druggable proteins.
W(CO)5(L)-Catalyzed Cyclization of α-Alkynyl-β-dicarbonyl Derivatives: Synthesis of Methylenelactones, Furans, and Methylenecyclopentanes
作者:Sunggak Kim、Xiangjian Meng
DOI:10.1055/s-0032-1316536
日期:2012.8
W(CO)(5)(L)-Catalyzed cyclization of alpha-alkynyl-beta-keto acids, keto esters, and diketones provides methylenelactones, furans, and methylenecyclopentanes via 5-exo-dig cyclization. Also, the present approach can be further applied to 5-endo-dig cyclization.