215022-82-5Relevant articles and documents
A convenient method for retro-cycloaddition of adducts from steroidal 5,7-dienes and 4-phenyl-1,2,4-triazolidine-3,5-dione and application to the syntheses of biosynthetic intermediates of ergosterol
Tachibana, Yoji
, p. 1454 - 1458 (1998)
Use of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in boiling xylene was found to be a convenient method for the retro-cycloaddition of adducts of 4- phenyl-1,2,4-triazolidine-3,5-dione (PTAD) with steroidal 5,7-dienes. This process was applied to the synthe