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2,2′‐(Ethynediyl)bis(4‐alkoxy‐1‐naphthols) and Dinaphthofuro[3,2‐ b ]furans—Substances with Unusual Photoreactivity and Photochromic Behavior
Author(s) -
Schmidt Andreas Johann,
Laatsch Hartmut,
Noltemeyer Mathias
Publication year - 1991
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199108661
Subject(s) - photochromism , photochemistry , alkoxy group , ring (chemistry) , yield (engineering) , chemistry , quinone methide , quinone , materials science , stereochemistry , organic chemistry , alkyl , metallurgy
The photochromic dinaphthofurofuran 1 undergoes a base‐induced ring opening to yield 2 , which instantaneously forms the dark blue dimeric quinone methide 3 on exposure to light. This compound is also the photoproduct of 1 and can react back to it both photochemically and thermally.