1482-78-6Relevant articles and documents
A new and concise way to enamides by fluoroalkanosulfonyl fluoride mediated Beckmann rearrangement of α,β-unsaturated ketoximes
Yan, Zhaohua,Xu, Yun,Tian, Weisheng
supporting information, p. 7186 - 7189 (2015/02/02)
The reaction of α,β-unsaturated ketoximes with fluoroalkanosulfonyl fluorides in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) underwent the Beckmann rearrangement smoothly to afford the corresponding acid-sensitive enamides in moderate to excellent yields, which provides a new efficient method for the preparation of acid-sensitive enamides.
Process for the preparation of 17β-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone
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, (2008/06/13)
A new process utilizing certain novel intermediates for the preparation of 17β-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone is described herein. The procedure utilizes readily available and inexpensive sarsasaponin as starting material.
4-CHLOROSTEROIDS. SYNTHESIS OF 4-BETA-CHLORO-DEHYDROISOANDROSTERONE ACETATE AND OF 4-CHLORO-4-ANDROSTEN-3 BETA-OL-17-ONE ACETATE.
CAMERINO,DECASTIGLIONE,BOSISIO
, p. 312 - 323 (2007/10/06)
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