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Updated: Feb 7, 2026
Rapid One-step Enzymatic Synthesis and All-aqueous Purification of Trehalose Analogues
Published on: February 17, 2017
One-Step Synthesis and Stealth Photochromism of Arylbutadienes
Jun-Ichi Kochi1, Takashi Ubukata1, Yasushi Yokoyama1
1Department of Advanced Materials Chemistry, Graduate School of Engineering , Yokohama National University , 79-5 Tokiwadai , Hodogaya, Yokohama 240-8501 , Japan.
Abstract:
The synthesis of thermally irreversible photochromic arylbutadienes has been demonstrated with a one-step reaction using commercially available ketones by McMurry cross-coupling. Although ( Z)-5-(1-([1,1'-bi(cyclopentylidene)]-2-ylidene)ethyl)-4-methyl-2-phenylthiazole, a 1-(4-methyl-2-phenyl-5-thiazolyl)butadiene, showed poor photochromism, ( Z)-5-(1-([1,1'-bi(cyclopentylidene)]-2-ylidene)ethyl)-2,4-dimethylthiazole, a 1-(2,4-dimethyl-5-thiazolyl)butadiene, showed stealth photochromic transformations by 313 and 366 nm light irradiation between the moderate conversion ratios of the open and closed forms.
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