cheminform abstract: pyridine and triphenylphosphine oxide activation of sulfonyl chlorides in the...

ChemInform 2009, 40, issue 15 © 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim www.cheminform.wiley-vch.de Sulfones Q 0600 Pyridine and Triphenylphosphine Oxide Activation of Sulfonyl Chlorides in the Syntheses of (E) Alk-1-enyl Sulfones. — The reaction of freshly generated (E)-alke- nylalanes [from alkynes (I)] with sulfonyl chloride—triphenylphosphine oxide or sulfonyl chloride—pyridine complexes provides access towards (E)-alkenylsulfones (III) and (IV) with improved yields. — (SIGNORE, G.; MALANGA, C.; MENICAGLI*, R.; Tetrahedron 64 (2008) 49, 11218-11223; Dip. Chim. Chim. Ind., Univ. Pisa, I-56126 Pisa, Italy; Eng.) — Mischke 15- 085

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Page 1: ChemInform Abstract: Pyridine and Triphenylphosphine Oxide Activation of Sulfonyl Chlorides in the Syntheses of (E) Alk-1-enyl Sulfones

www.cheminform.wiley-vch.de

200915.fm Seite 92 Montag, 16. März 2009 11:49 11

SulfonesQ 0600 Pyridine and Triphenylphosphine Oxide Activation of Sulfonyl Chlorides in the

Syntheses of (E) Alk-1-enyl Sulfones. — The reaction of freshly generated (E)-alke-nylalanes [from alkynes (I)] with sulfonyl chloride—triphenylphosphine oxide or sul-fonyl chloride—pyridine complexes provides access towards (E)-alkenylsulfones (III) and (IV) with improved yields. — (SIGNORE, G.; MALANGA, C.; MENICAGLI*, R.; Tetrahedron 64 (2008) 49, 11218-11223; Dip. Chim. Chim. Ind., Univ. Pisa, I-56126 Pisa, Italy; Eng.) — Mischke

15- 085

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