Infoscience

Journal article

2,2'-Bis(diphenylphosphino)biphenyl revisited

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)]

    Keywords: Ullmann reaction (prepn. of bis(diphenylphosphino)biphenyl) ; biphenyl diphenylphosphino prepn; phosphinobiphenyl prepn; Ullmann coupling iodophenyldiphenylphosphine

    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)

    Reference

    Record created on 2006-03-03, modified on 2016-08-08

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