scholarly journals Studies on Conformation and Reactivity. III. The Polyphosphoric Acid-catalyzed Ring Opening of 4, 5-Epoxy-3-oxo Steroids. 3. The Synthesis of 16α, 17-Epoxy-4-ethyl-thiopregn-4-ene-3, 20-dione and its Analogs

1965 ◽  
Vol 13 (9) ◽  
pp. 1078-1084 ◽  
Author(s):  
Munemitsu Tomoeda ◽  
Tetsuya Furuta ◽  
Toshitaka Koga
Keyword(s):  
Ring Opening ◽  
Polyphosphoric Acid ◽  
Acid Catalyzed

scholarly journals The Polyphosphoric Acid-Catalyzed Ring Opening of 4, 5-Epoxy-3-oxo Steroids : The Synthesis of 4-Alkylthio-4-en-3-oxo Steroids and their Analogs

1964 ◽  
Vol 12 (3) ◽  
pp. 383-385 ◽  
Author(s):  
Munemitsu Tomoeda ◽  
Masayuki Ishizaki ◽  
Harumi Kobayashi ◽  
Shoichi Kanatomo ◽  
Toshitaka Koga ◽  
...  
Keyword(s):  
Ring Opening ◽  
Polyphosphoric Acid ◽  
Acid Catalyzed
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