Preparation of 7-Substituted 4,5-Dihydro- 7H-pyrano[3,4-c]isoxazole Derivatives
作者:Masanori Somei、Koji Yamada、Fumio Yamada
DOI:10.3987/com-02-s78
日期:——
Kim, Hyung Jin; Choi, Kyung Ho; Hwang, Kwang-Jin, Heterocycles, 2003, vol. 60, # 7, p. 1625 - 1631
作者:Kim, Hyung Jin、Choi, Kyung Ho、Hwang, Kwang-Jin
DOI:——
日期:——
Duffy Jeffy L., Kurth Mark J., J. Org. Chem, 59 (1994) N 14, S 3783-3785
作者:Duffy Jeffy L., Kurth Mark J.
DOI:——
日期:——
A Novel Intramolecular Silyl Nitronate Cycloaddition Route to Dihydrofuraldehydes and Dihydropyranaldehydes
作者:Jetty L. Duffy、Mark J. Kurth
DOI:10.1021/jo00093a009
日期:1994.7
The novel transformation (1 --> 3) of propargylic or homopropargylic nitroethers to dihydrofuraldehydes (n = 0) or dihydropyranaldehydes (n = 1) is reported. The transformation proceeds by a silyl nitronate olefin cycloaddition to an N-[(trimethylsilyl)oxy]isoxazolidine intermediate which, upon acid workup, undergoes desilylation with subsequent elimination of hyponitrous acid to 3.