کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
177244 458972 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly diastereoselective photochromic ring closure of bisbenzothienylethenes possessing dual fluorinated stereocontrollers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Highly diastereoselective photochromic ring closure of bisbenzothienylethenes possessing dual fluorinated stereocontrollers
چکیده انگلیسی

Three regioisomeric bisbenzothienylethenes equipped with two (R)-pentafluoropropanoyloxyethyl groups on both ends of the hexatriene moiety displayed high diastereoselectivity towards light-induced 6π-electrocyclization reactions, particularly in polar solvents. In non-polar solvents such as hexane and octafluorotoluene, however, diastereoselectivity was not very high owing to the fluorophobic or less fluorophilic interactions, respectively, between the fluoroalkanoyl side chains and the solvent molecules.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 89, Issue 3, June 2011, Pages 223–229
نویسندگان
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