Process for preparing 2,2'-bis(halomethyl)-1,1'-binaphthyl

Details Process for preparing 2,2'-bis(halomethyl)-1,1'-binaphthyl Process for preparing 2,2'-bis(halomethyl)-1,1'-binaphthyl

1995-03-21

1996-03-26

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570191, 570197, C07C 1714, C07C 2204

Patent

active

055022618

ABSTRACT:
The present invention relates to a process for preparing 2,2'-bis(halomethyl)-1,1'-binaphthyl, by reacting 2,2'-dimethyl-1,1'-binaphthyl in the presence of a solvent with a halogenating agent under the action of light having a wavelength of from 10.sup.-5 to 10.sup.-8 m in the presence or absence of a free-radical former at from -10.degree. to 120.degree. C.

REFERENCES:
patent: 4329525 (1982-05-01), Riegel et al.
patent: 4489210 (1984-12-01), Judat et al.
patent: 4950817 (1990-08-01), Botta et al.
patent: 4967026 (1990-10-01), Daren
Tetrahedron Letters, vol. 30, No. 27 (1989), Binaphthylcyclopentadiene: A C.sub.2 -Symmetric Annulated Cyclopentadienyl Ligand with Axial Chirality, pp. 3513-3516.

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