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Herstellung und Umsetzungen von β‐Lactamen
Author(s) -
Haug Th.,
Lohse F.,
Metzger K.,
Batzer H.
Publication year - 1968
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19680510828
Subject(s) - chemistry , polyolefin , hydrolysis , isoprene , isocyanate , reactivity (psychology) , polymer chemistry , organic chemistry , bifunctional , cycloaddition , medicinal chemistry , catalysis , copolymer , polyurethane , polymer , medicine , alternative medicine , layer (electronics) , pathology
The cycloaddition of N‐chlorosulfonyl‐isocyanate with isoprene, butadiene and a polyolefin as well as the reaction of ketenes with some bis‐azomethines were investigated. Suitably substituted bis‐azomethines could be separated in the rac. and the meso ‐form. The reactivity of the azetidinones towards hydrolysis and hydrogenation was tested. Attempts to polymerise 4‐vinyl‐azetidin‐2‐one, polyazetidinone and N‐substituted bis‐azetidinones to give cross‐linked poly‐β‐amides were not successful.