Tetrahedron Letters p. 1361 - 1364 (1989)
Update date:2022-07-29
Topics:
Maryanoff, Bruce E.
Reitz, Allen B.
Graden, David W.
Almond, Harold R.Jr.
The fate of intermediate oxaphosphetanes in the reaction of t-BuCHO and Bu3P=CHPr was monitored with time.Cis oxaphosphetane 1a was converted to trans oxaphosphetane 1b at -55 deg C with k3=1.5E-4 s-1, and 1b was converted to Bu3P=O and alkene 2b at -15 deg C with k6=2.7E-5 s-1 (t1/2=7.0 h).
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