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Annelation of Carbene Ligands by λ 3 ‐Phosphaalkynes, an Entry to Functionalized Phosphaarenes
Author(s) -
Dötz Karl Heinz,
Tiriliomis Athanassios,
Harms Klaus,
Regitz Manfred,
Annen Ulrich
Publication year - 1988
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198807131
Subject(s) - carbene , chemistry , chromium , annulation , medicinal chemistry , product (mathematics) , organic chemistry , catalysis , mathematics , geometry
Phosphaarenes from Phosphaalkynes by reaction with carbene(carbonyl) complexes [Eq. (a)]. This reaction principle was first realized in the case of two chromium complexes (R = Me, Et). 3‐Phosphaphenanthrene was liberated almost quantitatively from the product with R = Et on reaction with CO, thus allowing recovery of the Cr(CO) 6 required for the synthesis of the carbene complex.