Premium
Stereoselective Cyclopolymerization of 1,6‐Heptadiynes: Access to Alternating cis‐trans ‐1,2‐(Cyclopent‐1‐enylene)vinylenes by Fine‐Tuning of Molybdenum Imidoalkylidenes
Author(s) -
Anders Udo,
Nuyken Oskar,
Buchmeiser Michael R.,
Wurst Klaus
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20021104)41:21<4044::aid-anie4044>3.0.co;2-m
Subject(s) - molybdenum , alkyne , stereoselectivity , chemistry , polymer chemistry , photochemistry , catalysis , organic chemistry
Taking the sting out of controlling rings : Highly regular, alternating cis‐trans ‐polyenes solely containing five‐membered rings have been prepared by living alkyne cyclopolymerization of 1,6‐heptadiynes using fine‐tuned Schrock initiators (see scheme). The resulting polyenes possess interesting physical properties that are different from those of existing poly(heptadiyne) systems.