[EN] ENVIRONMENTALLY-FRIENDLY HYDROAZIDATION OF OLEFINS<br/>[FR] HYDROAZIDATION D'OLÉFINES RESPECTUEUSE DE L'ENVIRONNEMENT
申请人:UNIV GEORGIA STATE RES FOUND
公开号:WO2020006476A1
公开(公告)日:2020-01-02
The present invention provides processes for the synthesis of organic azides, intermediates for the production thereof, and compositions related thereto.
Direct Intermolecular Anti-Markovnikov Hydroazidation of Unactivated Olefins
作者:Hongze Li、Shou-Jie Shen、Cheng-Liang Zhu、Hao Xu
DOI:10.1021/jacs.9b04381
日期:2019.6.12
hydroazidation method for unactivatedolefins, which is promoted by a catalytic amount of bench-stable benziodoxole at ambient temperature. This method facilitates previously difficult, direct addition of hydrazoic acid across a wide variety of unactivatedolefins in both complex molecules and unfunctionalized commodity chemicals. It conveniently fills a synthetic chemistry gap of existing olefin hydroazidation
Anti‐Markovnikov Hydroazidation of Alkenes by Visible‐Light Photoredox Catalysis
作者:Juan‐Juan Wang、Wei Yu
DOI:10.1002/chem.201806371
日期:2019.3.7
under visible‐light irradiation by using [Ir(dF(CF3)ppy)2(dtbbpy)]PF6 as the photocatalyst and trimethylsilyl azide as the azidating agent. The reactions were greatly facilitated by water, the beneficial effect of which can be attributed to its participation in the reaction as the hydrogen donor, as indicated by deuterium isotope experiments. The reactions proceed under solvent free conditions in the
Synthesis of new diverse macrocycles from diol precursors
作者:Charlotte M. Madsen、Martin Hansen、Marie V. Thrane、Mads H. Clausen
DOI:10.1016/j.tet.2010.10.071
日期:2010.12
of diverse macrocycles with different ring sizes from two easily accessible building blocks is presented. Reacting diolprecursors with electrophilic reagents lead to 17-membered sulfites and 19-membered malonates in 34–79% yield. Double-reductive amination of dialdehyde analogs of the diolprecursors leads to 15-membered amines in yields ranging from 9 to 60%, reflecting large differences in reactivity