Photochemical hydrolysis of o-acetylphenylacetonitriles
摘要:
Irradiation of 1 and its methyl derivative 10a (lambda >280 nm) in methanol leads to photohydrolysis of the nitrile group and formation of the related ketal amides 3 and 11a, respectively. Similar treatment of the dimethyl derivative 10b and of the parent nitrile 13 fails to yield corresponding products of hydrolysis. A mechanism is proposed for these novel hydrolyses.
Novel Photochemical Hydrolysis of o-Acetylphenylacetonitriles to Amides
摘要:
Irradiation of o-acetylphenylacetonitriles 1a,b in methanol (lambda > 280 nm) leads to essentially quantitative photohydrolysis with formation of the corresponding ketal amides 3a,b. The mechanism proposed for this novel reaction is supported by the qualitatively different photochemical behavior of 1c and by a labeling experiment with 1a-L that confirms transfer of the carbonyl oxygen atom of 1a to the amide oxygen atom of 3a.
Novel Photochemical Hydrolysis of <i>o</i>-Acetylphenylacetonitriles to Amides
作者:Qingyi Lu、Pakorn Bovonsombat、William C. Agosta
DOI:10.1021/jo952147s
日期:1996.1.1
Irradiation of o-acetylphenylacetonitriles 1a,b in methanol (lambda > 280 nm) leads to essentially quantitative photohydrolysis with formation of the corresponding ketal amides 3a,b. The mechanism proposed for this novel reaction is supported by the qualitatively different photochemical behavior of 1c and by a labeling experiment with 1a-L that confirms transfer of the carbonyl oxygen atom of 1a to the amide oxygen atom of 3a.
Photochemical hydrolysis of o-acetylphenylacetonitriles
作者:Qingyi Lu、Pakorn Bovonsombat、William C. Agosta
DOI:10.1016/0040-4039(95)01929-c
日期:1995.12
Irradiation of 1 and its methyl derivative 10a (lambda >280 nm) in methanol leads to photohydrolysis of the nitrile group and formation of the related ketal amides 3 and 11a, respectively. Similar treatment of the dimethyl derivative 10b and of the parent nitrile 13 fails to yield corresponding products of hydrolysis. A mechanism is proposed for these novel hydrolyses.