101039-34-3Relevant articles and documents
RITTER-REACTION OF STEROIDS RING EXPANSION OF STEROID OXETHANS INTO DIHYDROOXAZINES
Schneider, Gyula,Hackler, Laszlo,Sohar, Pal
, p. 3377 - 3386 (2007/10/02)
The 3β-acetoxy-16β,17β-epoxymethyleneandrost-5-ene (1) transforms into the dihydrooxazine condensed to the sterane skeleton (4a,b,c,e,g,i) in a ring expansion reaction with alkyl and aryl nitriles in presence of HBF4 - diethyletherate.The 3β-acetoxy-16α,1