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Synthesis 2000; 2000(3): 360-364
DOI: 10.1055/s-2000-6352
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Organophosphorus Compounds, Part 149. Preparation of 1,3-Oxaphospholes by Transition Metal-Catalyzed Reactions of α-Diazo-β-dicarbonyl Compounds with tert-Butylphosphaacetylene

Sven G. Ruf* , Andreas Mack, Jörg Steinbach, Uwe Bergsträßer, Manfred Regitz
  • *Fachbereich Chemie der Universität Kaiserslautern, Erwin-Schroedinger-Straße, 67663 Kaiserslautern, Germany; Fax + 49(0)63 12 05 39 21; E-mail: regitz@rhrk.uni-kl.de
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Publication Date:
31 December 2000 (online)

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In the presence of Rh2(OAc)4 as catalyst the cyclic α-diazo-β-dicarbonyl compounds 7a-c react with tert-butylphosphaacetylene 2 under elimination of nitrogen to furnish the 1,3-oxaphosphole derivatives 8a-c. The feasible competing reaction with formation of the 1,2,4-diazaphospholes 9a-c has not been observed.

diazo compounds - rhodium - phosphorus

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