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  • Transition-metal-free atropo-selective synthesis of biaryl compounds based on arynes.

Transition-metal-free atropo-selective synthesis of biaryl compounds based on arynes.

Chemistry (Weinheim an der Bergstrasse, Germany) (2012-09-29)
Frédéric R Leroux, Anaïs Berthelot, Laurence Bonnafoux, Armen Panossian, Françoise Colobert
ABSTRACT

A modular way towards biaryls: Highly enantioenriched biphenyls can be prepared based on a transition-metal-free aryl-aryl coupling followed by efficient desymmetrization or deracemization and chemoselective functionalization (see scheme).

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Safrole, ≥97%
Supelco
Safrole, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Sigma-Aldrich
Biphenyl, ≥99%
Sigma-Aldrich
Biphenyl, ReagentPlus®, 99.5%
Supelco
Biphenyl, PESTANAL®, analytical standard