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
“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.
Zinc carbenoid-mediated chain extension of β-keto amides
作者:Ramona Hilgenkamp、Charles K Zercher
DOI:10.1016/s0040-4020(01)00879-1
日期:2001.10
The reaction of β-keto amides with ethyl(iodomethyl)zinc provides access to a wide variety of γ-keto amides, including primary, secondary, and tertiary amides. Although the reaction of α-substituted β-keto amides are in many cases unsatisfactory, the method can be applied to a broad spectrum of substrates that possess imide and olefinic functionality.
Reactions of organic peroxides. Part XII. Amino-peroxides from acyclic carbonyl compounds
作者:E. G. E. Hawkins
DOI:10.1039/j39690002678
日期:——
ammonia and hydrogen peroxide, yield symmetrical peroxy-amines as do cyclic ketones. The peroxy-amines derived from aldehydes give the aldehyde and corresponding amide on treatment with bases, whilst those from ketones yield the ketone and secondary amides under strongly basic conditions. Pyrolysis also gives rise to carbonyl compounds and amides but nitriles are additionally formed from the peroxy-amines