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Formation, Detection, and Reactions of Phosphinidenes (Phosphanediyls)
Author(s) -
Schmidt Ulrich
Publication year - 1975
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.197505231
Subject(s) - pyrolysis , thermal decomposition , chemistry , decomposition , trapping , mass spectrometry , photochemistry , medicinal chemistry , organic chemistry , chromatography , ecology , biology
Formation and detection of phosphinidenes (RP̈:) in the decomposition of cyclophosphanes and in the reaction of dichlorophosphanes with metals are considered critically. Only in the thermolysis of pentaphenylcyclopentaphosphane can phenylphosphinidene be detected with certainty by pyrolysis‐mass spectroscopy. “Trapping reactions” such as “insertion” into SS or AsAs bonds, and addition reactions with 1,2‐diketones, 1,3‐dienes, or alkynes can also be interpreted without the assumption of free phosphinidenes. The pyrolysis products of cyclophosphanes add to 1,3‐dienes and alkynes, yielding five‐ and six‐membered heterocycles that contain one to three phosphorus atoms.