Knowledge Center

Patent / Jan 01, 1973

16.beta.-Methyl-17.alpha.-hydroxypregna-1,4,9(11)-triene-3,20-dione and analogs

Authors:
  • Ivan Villax
Source:
GB 1397267

Pregnatrienedione I was prepd. from epoxypregnanetrione II in 7 steps. Thus, II underwent ketalization with HOCH2CH2OH, KBH4 redn., dehydration, Grignard reaction with MeMgBr, and deketalization to give pregnenedione III. III was treated with Br2-HOAc and then debrominated to I.

Also in the Knowledge Center

Related Content

Global Sales and Marketing Meeting - GSM 2023

Hi there! Find here the relevant information about the Global Sales, Marketing & Communications and PMO Meeting in Lisbon, Portugal.

Page
Read more

Hovione partners with Dragonfly Technologies to offer micellar chemistry technology to customers as a sustainable alternative to conventional chemical processes

Press Release / Mar 07, 2024
Article
View

Lean

Manufacturing Function.

Page
Read more