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Metal‐Promoted Cyclotrimerization of a λ 3 ‐Phosphaalkyne: Formation of a Molybdenum‐Coordinated 1,3,5‐Triphosphabenzene
Author(s) -
Barron Andrew R.,
Cowley Alan H.
Publication year - 1987
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.198709071
Subject(s) - chemistry , molybdenum , metal , ligand (biochemistry) , orange (colour) , photochemistry , inorganic chemistry , organic chemistry , food science , biochemistry , receptor
The excellent synthetic potential of the phosphaalkynes, analogous to that of the alkynes, can be demonstrated once again with the title reaction. Reaction of [η 6 ‐C 7 H 7 Mo(CO) 3 ] with t BuCP in THF yields the 1 H‐ and 31 P‐NMR and IR spectroscopically characterized complex 1 in the form of orange microcrystals. The 31 P chemical shift of the coordinated η 6 ‐triphosphabenzene ligand in 1 is δ = 25.2.