Transformed steroids. 109. Acylhydrazones of ?,?-unsaturated ketones of pregnane series

1980 ◽  
Vol 29 (5) ◽  
pp. 843-846 ◽  
Author(s):  
A. V. Kamernitskii ◽  
N. S. Pavlova-Grishina ◽  
A. V. Skorova
Keyword(s):  
Unsaturated Ketones ◽  
Pregnane Series

ChemInform Abstract: TRANSFORMED STEROIDS. 109. ACYLHYDRAZONES OF α,β-UNSATURATED KETONES OF THE PREGNANE SERIES

1980 ◽  
Vol 11 (44) ◽  
Author(s):  
A. V. KAMERNITSKII ◽  
N. S. PAVLOVA-GRISHINE ◽  
A. V. SKOROVA
Keyword(s):  
Unsaturated Ketones ◽  
Pregnane Series

1,4-Reductions of α,β-Unsaturated Ketones and Aldehydes via in situ Generated Hydridocuprates

Synlett ◽  
1989 ◽  
Vol 1989 (01) ◽  
pp. 64-66 ◽  
Author(s):  
Bruce H. Lipshutz ◽  
Christopher S. Ung ◽  
Saumitra Sengupta
Keyword(s):  
Unsaturated Ketones

Preparation of (20E)-21-Ethoxycarbonyl-14β,17α-pregna-5,20-dien-3β-yl Hydrogen Butanedioate

1995 ◽  
Vol 60 (4) ◽  
pp. 715-718 ◽  
Author(s):  
Vladimír Pouzar ◽  
Ivan Černý
Keyword(s):  
Title Compound ◽  
Nmr Spectra ◽  
Total Yield ◽  
Reaction Sequence ◽  
Pregnane Series ◽  
H Nmr

The title compound X was prepared according to the recently published procedure for preparation of analogous derivatives in the 5β-pregnane series, using the reaction sequence I -> II -> III -> IV -> V -> VI -> VII -> VII -> IX -> X (total yield 18%). The configuration at ring D centers (14β,17α) follows from the structure of the starting ketone I and was also checked by comparing diol IV with the sample prepared by an independent route. The epimeric purity at C-17 was carefully monitored during the whole synthesis by 1H NMR spectra (singlet of 18-H3).

ChemInform Abstract: ORGANIC PHOTOCHEMISTRY. 53. PHOTOCHEMISTRY OF BICYCLIC Δ-THIA-α,β-UNSATURATED KETONES. A VINYLKETENE MECHANISM

1982 ◽  
Vol 13 (11) ◽  
Author(s):  
T. MIYASHI ◽  
N. SUTO ◽  
T. YAMAKI ◽  
T. MUKAI
Keyword(s):  
Unsaturated Ketones ◽  
Organic Photochemistry

Divergent Functionalization of α,β-Enones: Catalyst-free Access to β-Azido Ketones and β-Amino α-Diazo Ketones

2021 ◽  
Author(s):  
Youshao Tu ◽  
honglin Dong ◽  
Huamin Wang ◽  
Yuhui Ao ◽  
Yu Liu
Keyword(s):  
Carbonyl Compounds ◽  
Practical Method ◽  
Free Access ◽  
Unsaturated Ketones ◽  
Catalyst Free

A simple and practical method for the azidation of β-fluoroalkyl α,β-unsaturated ketones to access a wide variety of fluorinated nitrogenous carbonyl compounds is developed. Different from existing precedents, neither metallic...

Eco-friendly and regioselective synthesis of 3-(isoxazol-5)-yl) indoles from β-ethylthio-β-indolyl-α, β-unsaturated ketones in water

2021 ◽  
pp. 1-7
Author(s):  
Jia Jia ◽  
Ye Su ◽  
Hai-Feng Yu ◽  
Hai-Tao Du ◽  
Ze-Min Mei
Keyword(s):  
Regioselective Synthesis ◽  
Unsaturated Ketones
Sign in / Sign up

Export Citation Format

Share Document