Title of article
Stereoselection of sterically unbiased Diels–Alder dienes with spiro conjugation
Author/Authors
Igarashi، نويسنده , , Hiroyuki and Sakamoto، نويسنده , , Shigeru and Yamaguchi، نويسنده , , Kentaro and Ohwada، نويسنده , , Tomohiko، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
4
From page
5257
To page
5260
Abstract
1,3-Cyclopentadienes bearing a fluorene in spiro geometry are nonsterically biased dienes, which can be used to probe the facial selectivities of Diels–Alder reactions. Anti preference of spiro dienes (2 and 3) bearing 2- and 4-nitro and 2-methoxy substituents as Diels–Alder dienes is in striking contrast to facial preference of the related open-chain 5,5-diphenyl-cyclo-1,3-pentadienes.
Keywords
Diels–Alder reactions , spiro compounds , diastereoselection , 1 , 3-cyclopentadienes , facial selectivities
Journal title
Tetrahedron Letters
Serial Year
2001
Journal title
Tetrahedron Letters
Record number
1646150
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