Amino substituted bisketenes: Generation, structure, and reactivity

…, S Kobayashi, TT Tidwell, S Vukovic…

Index: Allen, Annette D.; Fedorov, Andrei V.; Tidwell, Thomas T.; Vukovic, Sinisa Journal of the American Chemical Society, 2004 , vol. 126, # 48 p. 15777 - 15783

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Citation Number: 12

Abstract

Hitherto unknown diamino-substituted bisketenes with both free (14) and tethered (16) amino substituents have been generated by using laser flash photolysis for ring opening of the corresponding cyclobutenediones. The time-resolved kinetics of ring closure of the amino bisketenes back to the cyclobutenediones were measured by IR or UV spectroscopy, and give first-order rate constants which vary by a factor of 7.5× 104, and the bis (Me2N) ...