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Novel chemoselective 1,3-dipolar cycloaddition of rhodium generated carbonyl ylides with arylidenetetralones

✍ Scribed by Sengodagounder Muthusamy; Srinivasarao Arulananda Babu; Chidambaram Gunanathan

Publisher: Elsevier Science
Year: 2000
Tongue: French
Weight: 70 KB
Volume: 41
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)01560-4

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✦ Synopsis

Treatment of various a-diazo ketones 1 and arylidenetetralones 2 in the presence of rhodium(II) acetate dimer leads to spiro-dioxa ring systems 3 as the only C O addition products with high regio-and chemoselectivity.

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