Relative diels-alder reactivity of 3-alkyl-2-(3-butenyl)-1,2-dihydropyridines. : Interplay of electronic and steric factors related to the 3-alkyl group.期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Relative diels-alder reactivity of 3-alkyl-2-(3-butenyl)-1,2-dihydropyridines. : Interplay of electronic and steric factors related to the 3-alkyl group.

Authors:	Grant R. Krow Yoon B. Lee Steven W. Szczepanski Ramesh Raghavachari A. David Baker

Affiliation:	Department of Chemistry, Temple University, Philadelphia, PA 19122 USA;Department of Chemistry, Queens College, Flushing, New York 11367-0904 USA

Abstract:	Steric effects have been found to predominate over Frontier Molecular Orbital (FMO) effects in controlling the relative rates of intramolecular cycloadditions of 3-R-substituted- 2-(3-butenyl)1,2-dihydropyridines (DHP) in the series $4a–c$ (R = H, Me, Et).

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