Stepwise [2 + 2] and [3 + 2] "cycloaddition" reactions of allenyl cations with olefins
نویسندگان
چکیده
منابع مشابه
Catalytic [2+2] and [3+2] cycloaddition reactions of allenoates with cyclic ketimines.
Cyclic ketimines as electrophiles for [2+2] and [3+2] cycloaddition reactions of allenoates have been developed, affording functionalized sultam-fused azetidines and dihydropyrroles, respectively, in good yields with high regioselectivities.
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ABSTRACT [2 + 3] Cycloaddition reactions of nitroacetylene with allenyl-type three-atom components take place according to the polar, but a one-step mechanism. Alternatively to cycloadducts, during the reaction between the aforementioned reagents, zwitterionic structures with "extended" conformation may be formally created. However, this route is supported by neither kinetic nor thermodynamic f...
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ژورنال
عنوان ژورنال: The Journal of Organic Chemistry
سال: 1981
ISSN: 0022-3263,1520-6904
DOI: 10.1021/jo00318a046