Premium
Interaction of Some Methylenediphosphanes with Hexafluoroacetone and Hexafluorothioacetone Dimer
Author(s) -
Shevchenko Igor V.,
Mikolenko Rostislav N.,
Lork Enno,
Röschenthaler GerdVolker
Publication year - 2001
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200109)2001:9<2377::aid-ejic2377>3.0.co;2-3
Subject(s) - hexafluoroacetone , chemistry , dimer , wittig reaction , stereochemistry , phosphorus , medicinal chemistry , organic chemistry
The reactions of methylenediphosphanes 1a − c with hexafluoroacetone (HFA) and hexafluorothioacetone dimer (HFTA) gave the respective carbodiphosphoranes 5a , 5b , 6 , 15 , and 19 . The carbodiphosphoranes 6 and 19 , with phenyl groups at phosphorus, were able to react further with C=O or C=S functions. Compound 6 added one equivalent of HFA across one of the ylidic P=C bonds to give compound 9 , a stable intermediate of the Wittig reaction. The addition of HFTA to 19 gave, unexpectedly, the isomeric compound 21 . The molecular structures of 9 , 15 , and 21 were confirmed by X‐ray investigations.