A Rare Alder-ene Cycloisomerization of 1,6-Allenynes

被引:6
|
作者
Joyce, Liam M. [1 ]
Drew, Melanie A. [1 ]
Tague, Andrew J. [1 ]
Thaima, Thanaphat [1 ]
Gouranourimi, Ali [2 ]
Ariafard, Alireza [2 ]
Pyne, Stephen G. [1 ]
Hyland, Christopher J. T. [1 ]
机构
[1] Univ Wollongong, Sch Chem & Biomol Sci, Mol Horizons Res Inst, Wollongong, NSW 2522, Australia
[2] Univ Tasmania, Sch Phys Sci, Hobart, Tas 7018, Australia
基金
澳大利亚研究理事会;
关键词
1; 6-allenyne; Alder-ene; cycloisomerization; lactam; computations; INTRAMOLECULAR 2+2 CYCLOADDITION; GOLD-CATALYZED CYCLOISOMERIZATION; ALLENE; CYCLIZATION; ACTIVATION; CONSTRUCTION; SUBSTITUENT; LACTONES; NITROGEN;
D O I
10.1002/chem.202104022
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Thermally induced cycloisomerization reactions of 1,6-allenynes gives alpha-methylene-gamma-lactams via intramolecular Alder-ene reactions. The mechanism is supported by computational and deuterium labelling studies. This thermal, non-radical method enables the discovery of a hitherto unknown route that proceeds via a divergent mechanism distinct from the previous [2+2] cycloisomerization manifold.
引用
收藏
页数:5
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