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Asymmetric synthesis of 4,4-disubstituted 2-cyclopentenones from optically active 1-chlorovinyl p-tolyl sulfoxides and cyanomethyllithium with formation of a quaternary chiral center

✍ Scribed by Tsuyoshi Satoh; Masaaki Yoshida; Hiroyuki Ota

Publisher: Elsevier Science
Year: 2001
Tongue: French
Weight: 71 KB
Volume: 42
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)02034-2

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Enantiomerically pure 1-chlorovinyl p-tolyl sulfoxides having two different substituents at the 2-position were synthesized from unsymmetrical ketones and (R)-(-)-chloromethyl p-tolyl sulfoxide in three steps. Treatment of the 1-chlorovinyl p-tolyl sulfoxides with cyanomethyllithium at -78°C to room

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## Abstract For Abstract see ChemInform Abstract in Full Text.

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