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Photochemical Reactions of 1‐Alkyl‐4,6‐diaryl‐2(1 H )‐pyrimidinones in the Presence of Amines
Author(s) -
Nishio Takehiko,
Kato Michiyo,
Kashima Choji
Publication year - 1989
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.198919890203
Subject(s) - pyrimidinones , chemistry , adduct , alkyl , irradiation , medicinal chemistry , organic chemistry , physics , nuclear physics
Irradiation of 1‐alkyl‐4,6‐diaryl‐2(1 H )‐pyrimidinones 1 in the presence of aliphatic amines gave the CC‐bonded 1:1 adducts and/or the reduced dihydropyrimidinones, while irradiation of 1 in the presence of aromatic amines gave the 1:1 adducts exclusively. The photoadditions of amines to 1 can be explained by a sequential electron/proton transfer mechanism.