110577-12-3Relevant academic research and scientific papers
X-Ray characterization of enantiomerically pure 1,1′-diphenyl-3,3′,4,4′tetramethyl-2,2′-biphosphole: A ligand with axial and central chirality
Tissot, Olivier,Gouygou, Maryse,Daran, Jean-Claude,Balavoine, Gilbert G. A.
, p. 2287 - 2288 (2007/10/03)
The stereochemical analysis and characterization of diastereoisomers of 1,1′-diphenyl-3,3′,4,4′-tetramethyl-2,2′-biphosphole having axial and central chirality reveal the potential interest of this ligand for asymmetric catalysis.
Preparation and synthetic uses of a 2-lithiophosphole
Deschamps. E.,Mathey, F.
, p. 486 - 489 (2007/10/02)
1-Phenyl-2-bromo-3,4-dimethylphosphole was prepared from 1-phenyl-3,4-dimethylphosphole via a sequence involving oxidation at phosphorus, bromination and dehydrobromination of the dienic system, and finally, PV to PIII conversion by
SYNTHESIS AND SOME REACTIONS OF A 2,2'-BIPHOSPHOLYL
Mercier, Francois,Holand, Serge,Mathey, Francois
, p. 271 - 280 (2007/10/02)
1,1'-Diphenyl-3,3',4,4'-tetramethyl-2,2',5,5'-tetrahydro-2,2'-biphosphole obtained by reductive dimerization of the appropriate phosphole has been converted into the corresponding 2,2'-biphosphole by P-bromination followed by dehydrobromination of the resulting P,P'-tetrabromo compound with α-picoline.This 2,2'-biphosphole gives two isomeric P-sulfides upon reaction with sulfur, and a Mo(CO)4 chelate upon reaction with Mo(CO)6.Cleavage of the two P-phenyl bonds by lithium in THF yields the corresponding biphospholyl anion, which is converted into a mixture of two isomeric bis(η5,η5-2,2'-diphosphafulvalene)diirons by treatment with FeCl2.The reaction of Mn2(CO)10 in boiling xylene affords a mixture of three complexes, including a (η5,η5-2,2'-diphosphafulvalene)hexacarbonyldimanganese produced by thermal cleavage of the two P-Ph bonds.Under CO pressure there is a P --> C shift of the two phenyl groups, leading to formation of (η5,η5-3,3'-diphenyl-2,2'-diphosphafulvalene)hexacarbonyldimanganese.
