The reaction between 2,2'-dilithiobiphenyl and two equiv. of chlorodiphenylphosphine is confirmed to afford equal amts. of 9-phenyl-9-phosphafluorene (2) and PPh3. 2,2'-Bis(diphenylphosphino)biphenyl (1,1'-biphenyl-2,2'-diylbis(diphenylphosphine) (1)) can be conveniently prepd. by Ullmann coupling of 2-iodophenyldiphenylphosphine oxide and subsequent redn. with trichlorosilane. [on SciFinder (R)]
Titre
2,2'-Bis(diphenylphosphino)biphenyl revisited
Publié dans
Journal of Organometallic Chemistry
Volume
507
Numéro
1-2
Pages
257-61
Date
1996
Note
CAN 124:202422 29-7 Organometallic and Organometalloidal Compounds Lausanne-Dorigny,Switz. Journal 0022-328X written in English. 93595-64-3P Role: PNU (Preparation, unclassified), RCT (Reactant), PREP (Preparation), RACT (Reactant or reagent) (formation and iodination of); 16291-32-0P (2,2'-Dilithiobiphenyl) Role: PNU (Preparation, unclassified), RCT (Reactant), PREP (Preparation), RACT (Reactant or reagent) (formation and reaction with chlorodiphenylphosphine); 791-28-6 (Triphenylphosphine oxide); 13029-09-9 (2,2'-Dibromobiphenyl) Role: RCT (Reactant), RACT (Reactant or reagent) (lithiation of); 88652-75-9P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (prepn. and Ullmann reaction of); 174467-54-0P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (prepn. and redn. of); 1088-00-2P; 84783-64-2P Role: SPN (Synthetic preparation), PREP (Preparation) (prepn. of); 1079-66-9 (Chlorodiphenylphosphine) Role: RCT (Reactant), RACT (Reactant or reagent) (reaction with dilithiobiphenyl)
Date de création de la notice
2006-03-03
