Process for preparing chiral dibenzofurans via intramolecular he

Details Process for preparing chiral dibenzofurans via intramolecular he Process for preparing chiral dibenzofurans via intramolecular he

1993-04-30

1994-01-11

Dentz, Bernard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30791

Patent

active

052783235

ABSTRACT:
The present invention is directed to the synthesis of 2-chloro-cis-[5a(S)-9a(S)-(5a,6,7,8,9,9a-hexahydro)]dibenzofuran-4-carboxy lic acid by an intramolecular Heck stereospecific synthesis substantially free of undesirable 8-chloro-2,6-methano-2H-3,4,5,6-tetrahydro-1-benzoxocin-10-carboxylic.

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Toth et al., J. Org. Chem., vol. 52(3), pp. 473-475 (1987).
Chem. Abstracts, vol. 96:19951q (1982).
Chem. Abstracts, vol. 96:142869n (1982).
Chem. Abstracts, vol. 68:21826t (1968).

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