Photochemical Reactions of 1‐Aryl‐2(1 H )‐pyrimidinones in Alcohol | Zendy

Nishio Takehiko | Zendy

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Photochemical Reactions of 1‐Aryl‐2(1 H )‐pyrimidinones in Alcohol

Author(s) -

Nishio Takehiko

Publication year - 1992

Publication title -

liebigs annalen der chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.825

H-Index - 155

eISSN - 1099-0690

pISSN - 0170-2041

DOI - 10.1002/jlac.199219920114

Subject(s) - pyrimidinones , chemistry , alcohol , isocyanate , medicinal chemistry , ethanol , aryl , bond cleavage , organic chemistry , photochemistry , alkyl , catalysis , polyurethane

Irradiation of the 2(1 H )‐pyrimidinones 1 in alcohols such as 2‐propanol and ethanol afforded the 1‐(alkoxycarbonylamino)‐3‐(arylimino)‐1‐propenes 4a – c , h and 2‐(alkoxycarbonylamino)‐4‐(arylimino)‐2‐pentenes 4d – g . These photoproducts are formed by trapping the isocyanate intermediates 2 , generated initially by the Norrish‐type I cleavage of the ArN—CO bond of the 2(1 H )‐pyrimidinones, with the alcohol.

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