Volume 53, Issue 5 pp. 1665-1669
Communication to the Editor

[2 + 2] Cycloaddition Reactions of Butadienyl Ketene with 1,4-Diazabuta-1,3-dienes: Synthesis of Functionalized Butadienyl-4-iminomethyl-azetidin-2-ones and Butenylidene-butadienyl-[2,2′-biazetidine]-4,4′-diones

Deepak Bains

Deepak Bains

Department of Applied Sciences, Punjab Technical University, Kapurthala, Punjab, 144603 India

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Yogesh Kumar

Yogesh Kumar

Department of Applied Sciences, Punjab Technical University, Kapurthala, Punjab, 144603 India

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Prabhpreet Singh

Prabhpreet Singh

Department of Chemistry, Guru Nanak Dev University, Amritsar, Punjab, 143005 India

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Gaurav Bhargava

Corresponding Author

Gaurav Bhargava

Department of Applied Sciences, Punjab Technical University, Kapurthala, Punjab, 144603 India

E-mail: [email protected]Search for more papers by this author
First published: 28 August 2015
Citations: 16

Abstract

The reactions of butadienylketene with variety of 1,4-diazabuta-1,3-dienes are studied. The reactions resulted in the formation of previously unknown functionalized cis butadienyl-4-iminomethyl-azetidin-2-ones and butenylidene-butadienyl-[2,2′-biazetidine]-4,4′- diones. Butadienyl ketene reacts in [2+2] cycloaddition fashion with both iminic portion of 1,4- diazabuta-1,3-dienes and competitive [4+2] cycloaddition reaction of 1,4-diazabuta-1,3-dienes as 4π component with butadienyl ketene as 2π component are not observed.

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