| Literature DB >> 17286436 |
Yutaka Tani1, Takashi Ubukata, Yayoi Yokoyama, Yasushi Yokoyama.
Abstract
A novel photochromic helicenoid diarylethene (R)-1-[1-(1-methoxymethoxyethyl)-2-naphtho[2,1-b]thienyl]-2-(2,4,5-trimethyl-3-thienyl)hexafluorocyclopentene was synthesized enantioselectively. It showed highly diastereoselective photocyclization (90% de) and a large change (950 degrees) in the specific optical rotation value at 633 nm upon UV light irradiation in ethyl acetate.Entities:
Year: 2007 PMID： 17286436 DOI： 10.1021/jo062022v
Source DB: PubMed Journal: J Org Chem ISSN： 0022-3263 Impact factor: 4.354