Organic letters

Synthesis and photochromism of novel phenylene-linked photochromic bispyrans

W Zhao, EM Carreira

文献索引：Zhao, Weili; Carreira, Erick M. Organic Letters, 2006 , vol. 8, # 1 p. 99 - 102

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被引用次数: 55

摘要

Phenylene-linked bisnaphthopyrans were synthesized in good yields via the one-pot reaction of bis-propargyl alcohols with naphthols. Temperature-dependent photochromism in 1, 4-phenylene-linked bispyrans leads to up to 60 nm bathochromic shift between the colored species formed at room temperature and at-20° C. Better fatigue resistance and higher colorability was observed in 1, 4-phenylene-linked bis-[2 H]-naphtho [1, 2-b] pyrans ...