Reported herein is a visible‐light‐mediated radical approach to the α‐alkylation of ketones. This method exploits the ability of a nucleophilic organocatalyst to generate radicals upon SN2‐based activation of alkyl halides and blue light irradiation. The resulting open‐shell intermediates are then intercepted by weakly nucleophilic silyl enol ethers, which would be unable to directly attack the alkyl
Study of photochemical addition of acyl radical to electron-deficient olefins
作者:Francisco A. Macías、José María G. Molinillo、Guillermo M. Massanet、Francisco Rodríguez-Luis
DOI:10.1016/0040-4020(92)85010-c
日期:1992.1
The photochemical addition of acyl radical to electron-deficient olefins is studied. The scope of the reaction, the mechanism, the role that molecular oxygen plays, the influence of steric effects, and the side reaction that take place are discussed. The reaction was carried out using a range of electron-withdrawingsubstituents (ketones, amides, lactones, nitrile and esters) with good yields of the
This invention relates to novel hydroxyethylamino sulfonamides, their derivatives, pharmaceutically acceptable salts thereof. This invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by administering a compound with the ability to act as an HIV (human immunodeficiency virus) protease inhibitor.
“An efficient and mild entry to 1,4-dicarbonyl compounds via photochemical addition of acyl radical to electron-deficient olefins”
作者:Francisco A. Macias、Jose Maria G. Molinillo、Isidro G. Collado、Guillermo M. Massanet、Francisco Rodriguez-Luis
DOI:10.1016/s0040-4039(00)89026-7
日期:——
Photoehcmical addition of acetaldehyde to electron-deficient olefins in the presence of molecular oxygen provides an efficient and mild method for the synthesis of 1,4-functionallzed compounds. Some considerations about the mechanism and the substituent effects are outlined.