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Tandem cyclisations of amidyl radicals derived from O-acyl hydroxamic acid derivatives
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UNSPECIFIED (1999) Tandem cyclisations of amidyl radicals derived from O-acyl hydroxamic acid derivatives. SYNLETT (4). pp. 441-443. ISSN 0936-5214.
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Abstract
Amidyl radicals generated from tributylstannane mediated homolysis of O-acyl hydroxamic acid derivatives 5a-b undergo tandem cyclisations to give pyrrolizidinones 6a-c and indolizidinones 7a-b respectively while 5c-d undergo monocyclisation to give beta-lactam 10a and gamma-lactam 11a respectively. On the other hand the reaction of 5d-f with Cu(OTf)(2)/DBN furnishes mixtures of reduction 10b, monocyclisation 10a and tandem cyclisation 9 products with the: ratio dependant upon the nature of the O-acyl group and the solvent and concentration employed.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Journal or Publication Title: | SYNLETT | ||||
Publisher: | GEORG THIEME VERLAG | ||||
ISSN: | 0936-5214 | ||||
Official Date: | April 1999 | ||||
Dates: |
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Number: | 4 | ||||
Number of Pages: | 3 | ||||
Page Range: | pp. 441-443 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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