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Sequence control on the ring‐opening oligomerization of cyclic imino ethers
Author(s) -
Aoi Keigo,
Okada Masahiko,
Miyamoto Masatoshi
Publication year - 1997
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1997.030180103
Subject(s) - sequence (biology) , monomer , adduct , ring (chemistry) , chemistry , polymer chemistry , stereochemistry , organic chemistry , polymer , biochemistry
Sequence‐controlled oligomers of cyclic imino ethers were synthesized by the one‐pot multi‐stage feeding method. Selective formation of the sequence was clearly demonstrated by equimolar reactions between the monomers and 1:1 adducts of an initiator with the monomers. Efficiency of the sequence control is determined by the difference of reactivities of the active ends. A new general prerequisite to synthesize a well‐defined sequence by multi‐stage oligomerization was proposed.