Amino substituted bisketenes: Generation, structure, and reactivity
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 closur
Fu, Nanyan,Allen, Annette D.,Kobayashi, Shinjiro,Tidwell, Thomas T.,Vukovic, Sinisa,Arumugam, Selvananthan,Popik, Vladimir V.,Mishima, Masaaki
A new mode of cyclobutenedione ring opening for the synthesis of 2-oxobut-3-enamides and tetrasubstituted furans
A dichotomy between the additions of organolithiums and lithium amides to cyclobutenediones is described wherein the former give carbonyl addition products while the latter induce ring opening by enone cleavagevia O- toC-lithium transfer. This distinct mode of ring scission gives access to 2-oxobut-3-enamides and tetrasubstituted furans.
Bennett, Ryan M.,Sun, Wei,Wilson, Dharyl C.,Light, Mark E.,Harrowven, David C.
supporting information
p. 5694 - 5697
(2021/06/16)
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