Process for preparing 1,1'-binaphthyls

Details Process for preparing 1,1'-binaphthyls Process for preparing 1,1'-binaphthyls

1994-11-14

1996-04-23

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585 26, 585411, 585436, 585469, C07C 284

Patent

active

055105548

ABSTRACT:
In the preparation of 1,1'-binaphthyls substituted in the 2,2'-positions (and optionally substituted in one or more of positions 3 to 7 and/or 3' to 7'), a 1-halo-2-substituted naphthalene is reacted with a 2-substituted-1-naphthyl-magnesium halide in the presence of a catalyst. The catalyst comprises palladium and a phosphine ligand. Typical phosphine ligands include triphenylphosphine, 1,4-bis(diphenylphosphino)butane, 2,2'-bis(diphenylphosphinomethoxy)-1,1'-binaphthyl, and tetrakis(triphonylphosphine).

REFERENCES:
patent: 4705895 (1987-11-01), Okano et al.
patent: 5159093 (1992-10-01), Taketomi et al.
patent: 5347045 (1994-09-01), Herrmann et al.
Database WPI, Section Ch, Week 9004, Derwent Publications Ltd., AN 90-026705, London, GB, Dec. 8, 1989.
Database WPI, Section Ch, Week 8742, Derwent Publications Ltd., AN 87296427, London, GB; Sep. 14, 1987.

Affiliated with

Also associated with

Rating

Process for preparing 1,1'-binaphthyls does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing 1,1'-binaphthyls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing 1,1'-binaphthyls will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2310116