Quinazolines and 1,4-benzodiazepines. 69. 1-Vinyl-1,4-benzodiazepin-2-ones and 1-vinylquinazolin-2(1H)-ones

Walser, A.; Fryer, R. Ian

doi:10.1021/jm00257a020

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2021

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Cited by 8 publications

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“…Trialkylamine oxides may be pyrolyzed to yield an alkene plus an N,N-dialkylhydroxylamine (Cope elimination). [332][333][334][335][336][337][338][339][340][341][342][343] It should be emphasized that this method is only useful for the synthesis of N-(lower alkyl)-N-methylhydroxylamines and N,N-dialkylhydroxylamines with identical alkyl residues, e.g. 255, because otherwise mixtures of hydroxylamines are obtained.…”

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confidence: 99%

“…[335] Oxidation of a range of 2-cyanoethyl tertiary amines 257 with 3-chloroperoxybenzoic acid in dichloromethane, followed by Cope elimination of the transient intermediate Noxides 258, gives several (cyclic) N,N-dialkylhydroxylamines 259 in excellent yields (Scheme 95). [342] Scheme 95 Synthesis of (Cyclic) N,N-Dialkylhydroxylamines from 2-Cyanoethyl Tertiary Amines [342] N ( )…”

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confidence: 99%

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