Tetrahedron letters

The stereochemistry of the [2+ 2]-cycloadditions of cyclopentyne-evidence for an antisymmetrical singlet ground state

L Fitjer, S Modaressi

文献索引：Fitjer, Lutz; Modaressi, Said Tetrahedron Letters, 1983 , vol. 24, # 49 p. 5495 - 5498

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被引用次数: 39

摘要

Summary: Cyclopentyne 2, as generated from dibromomethylenecyclobutane 1, adds stereospecifically cis to both cisto 1, 4-addition with 1, 3-butadiz. and trans-2-butene and prefers 1, 2-Thispoints to an antisymmetrical singlet ground state of the cyclopentyne diradical.