110577-13-4Relevant academic research and scientific papers
Some aspects of the structural and coordination chemistry of the 2,2'- biphosphole
Tissot, Olivier,Hydrio, Jér?me,Gouygou, Maryse,Dallemer, Fréderic,Daran, Jean-Claude,Balavoine, Gilbert G. A.
, p. 85 - 93 (2000)
The 2,2'-biphosphole which presents axial chirality generated by the biphosphole framework and central chiralities due to the phosphorus atoms leads to the existence of six stereoisomers corresponding to three pairs of enantiomers which have been fully ch
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.
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.
