Copper (II)-catalyzed regio- and stereoselective addition of H/P(O)R2 to alkynes
作者:Inna G. Trostyanskaya、Irina P. Beletskaya
DOI:10.1016/j.tet.2014.02.037
日期:2014.4
catalyst for β-E regio- and stereoselective syn-addition of the H–P(O)-bond of diphenylphosphine oxide, H-phosphinates, dialkylphosphites to various alkynes in the synthesis of P(O)-containing alkenes. Without additives and ligands Cu(II)-compounds showed better results than CuI or Ni(acac)2. The catalytic system developed is tolerant to typical organic functional groups present in the alkynes and to the
Radical Hydrophosphorylation of Alkynes with R<sub>2</sub>P(O)H Generating Alkenylphosphine Oxides: Scope and Limitations
作者:Tianzeng Huang、Yuta Saga、Haiqing Guo、Aya Yoshimura、Akiya Ogawa、Li-Biao Han
DOI:10.1021/acs.joc.8b01042
日期:2018.8.3
Radical hydrophosphorylation of aliphatic terminal alkynes with H-phosphine oxides can produce the corresponding anti-Markovnikov alkenylphosphorus adducts in moderate yields. This method is a cleaner approach for the preparation of the corresponding alkenylphosphine oxides, since it avoids the use of a metal catalyst that sometimes is difficult to remove from the products.
SMALL MOLECULE INHIBITORS OF GALECTIN-3
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20210147408A1
公开(公告)日:2021-05-20
The present disclosure relates to compounds of formula I, which inhibit Gal-
3,
and include pharmaceutically acceptable salts, compositions comprising such compounds, and methods using and making such compounds and compositions.