ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
4-Imidazolidinones from Nitrones and Isocyanides. - Molecular Structure of 5-tert-Butyl-1,2,2-trimethyl-3(2,4,6-tribromophenyl)-4-imidazolidinoneCertain reactions of nitrone 1 and isocyanide 2, in the presence of ether - boron trifluoride, afford 4-imidazolidinones 4 which have been shown to be ring expansion products of the 4-imino-1,2-oxazetidines 3. 1,2,4-Oxadiazolidin-5-ones 5 (rather than 3 or 4) have been obtained from two further reactions of 1 with 2. - The constitution of 4 has been established by an X-ray analysis of the title compound 4c.
Notes:
Aus bestimmten Kombinationen von Nitron 1 und Isocyanid 2 erhält man in Gegenwart von Ether - Bortrifluorid nicht 4-Imino-1,2-oxazetidine 3, sondern deren Ringerweiterungsprodukte, die 4-Imidazolidinone 4. In zwei weiteren Fällen werden statt 3 oder 4 die 1,2,4-Oxadiazolidin-5-one 5 gefunden. - Die Konstitution 4 wird durch Röntgenstrukturanalyse des im Titel genannten Vertreters 4c bewiesen.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198419841008
