title: Seasoning materials chemistry by using a well-matured organic concept.
abstract: The concept "introduction of allylic 1,3-strain (A(1,3)-strain) to photochromism" originated from the experience of total synthesis of natural products about 18 years ago, when the author was a post doc. It was first applied to synthetic organic reactions, then it was successfully employed in the diastereoselective photochromic reactions of diarylethenes. A diastereomeric excess of the photoreaction was 88 % for the first example, and it was improved to 94 % by the recent operation of rational molecular tailoring.
authors.affiliation: Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University, 79-5, Tokiwadai, Hodogaya, Yokohama, 240-8501, Japan. yyokoyam@ynu.ac.jp
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Yokoyama
mesh_terms: D018360:Crystallography, X-Ray; D005030:Ethylenes / Q000138:chemical synthesis* / Q000528:radiation effects; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D010777:Photochemistry; D013237:Stereoisomerism; D014466:Ultraviolet Rays
chemical_list: D005030:Ethylenes