and simple procedure for the hydroamination of N‐allenylazoles with secondary amines. The reaction proceeds under mild conditions by copper(I) catalysis yielding the corresponding original linear E allylic amines with total regio‐ and stereoselectivity. Density Functional Theory (DFT) calculations offer a mechanistic explanation of the significantly higher reactivity of N‐allenyl‐(1,2)‐azoles compared
An azide and acetylene free synthesis of 1-substituted 1,2,3-triazoles
作者:Sarah J.M. Patterson、Peter R. Clark、Glynn D. Williams、Nicholas C.O. Tomkinson
DOI:10.1016/j.tetlet.2020.152483
日期:2020.11
This paper details a simple and efficient 3-component synthesis of 1-substituted 1,2,3-triazoles using a primary amine, 2,2-dimethoxyacetaldehyde and tosylhydrazide. The reaction proceeds in good to excellent yields using either aliphatic or aromatic amine substrates and is tolerant of a wide range of functional groups including electron-rich and deficient aryl groups, terminal alkynes, ketones and
Synthesis of discrete catalytic oligomers and their potential in silica-supported cooperative catalysis
作者:Prakash Chandra、Alain M. Jonas、Antony E. Fernandes
DOI:10.1039/c9ra00847k
日期:——
The synthesis of discrete catalytic oligomers and their potential in supported cooperative catalysis are presented.
离散催化寡聚体的合成及其在支持的协同催化中的潜力被提出。
Alkyne matrix metalloproteinase inhibitors
申请人:——
公开号:US20030144274A1
公开(公告)日:2003-07-31
A compound of Formula I
1
or a pharmaceutically acceptable salt thereof, or a tautomer thereof, wherein G
1
, G
2
, and B are as defined in the application, are selective inhibitors of MMP-13. The compounds are useful for treating diseases mediated by MMP-13, including cancer and arthritis.
A compound of Formula I
or a pharmaceutically acceptable salt thereof, or a tautomer thereof, wherein G
1
, G
2
, and B are as defined in the application, are selective inhibitors of MMP-13. The compounds are useful for treating diseases mediated by MMP-13, including cancer and arthritis.