Title of article
Pt(IV)-catalyzed generation and [4+2]-cycloaddition reactions of o-quinone methides
Author/Authors
Suttipol Radomkit، نويسنده , , Pakornwit Sarnpitak، نويسنده , , Jumreang Tummatorn، نويسنده , , Paratchata Batsomboon، نويسنده , , Somsak Ruchirawat، نويسنده , , Poonsakdi Ploypradith، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2011
Pages
11
From page
3904
To page
3914
Abstract
Novel intermolecular and intramolecular generations of ortho-quinone methides and their formal [4+2]-cycloaddition reactions with olefins catalyzed by PtCl4 and AuCl3 under mild conditions have been developed. Good to excellent yields (up to 99%) and diastereoselectivity (up to >99:1) of the chromans were obtained. PtCl4 was found to be effective and compatible with various functional groups present in the substrates. A mechanism accounting for its catalytic cycle is proposed and discussed.
Keywords
Stereoselective , Cycloaddition , Metal catalysis , Chroman , ortho-quinone methide
Journal title
Tetrahedron
Serial Year
2011
Journal title
Tetrahedron
Record number
1103250
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