Volume 20, Issue 22
Preparative Organic Chemistry
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ChemInform Abstract: The NEER Principle. Ground-State Conformational Bias in Triene Photocyclizations.

J. K. WHITESELL

J. K. WHITESELL

Dep. Chem., Univ. Tex., Austin, TX 78712, USA

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M. A. MINTON

M. A. MINTON

Dep. Chem., Univ. Tex., Austin, TX 78712, USA

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V. D. TRAN

V. D. TRAN

Dep. Chem., Univ. Tex., Austin, TX 78712, USA

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First published: May 30, 1989

Abstract

The diastereoselectivity observed for the photocyclization of the six trienes (I) and (IV) can be rationalized as the result of conformational bias in the ground states of the starting trienes.

ChemInform Abstract

The diastereoselectivity observed for the photocyclization of the six trienes (I) and (IV) can be rationalized as the result of conformational bias in the ground states of the starting trienes. The results (no details given) thereby lend experimental support to the Non-Equilibration of Excited Rotamers or NEER principle.

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