87530-76-5Relevant articles and documents
A convenient methodology for the in situ oxidation of 4-substituted urazoles. Setting UP a one-pot procedure for the efficient protection of dienes
Fernandez-Herrera, Maria A.,Sandoval-Ramirez, Jesus,Montiel-Smith, Sara,Meza-Reyes, Socorro
, p. 571 - 582 (2013/04/10)
The oxidation of 4-substituted urazoles to the corresponding 1,2,4-triazoline-3,5-diones can be performed selectively in the presence of dienic systems by the action of the nitrosonium ion, formed in situ by stoichiometric amounts of sodium nitrite and ac
IMPROVED SYNTHESIS OF 1,2,4-TRIAZOLINE-3,5-DIONE DERIVATIVES OF ERGOSTEROL AND A NEW METHOD FOR THEIR RECONVERSION TO ERGOSTEROL
Barton, Derek H. R.,Lusinchi, Xavier,Ramirez, Jesus Sandoval
, p. 2995 - 2998 (2007/10/02)
The ergosterol diene system reacts in excellent yield with a series of 4-substituted 1,2,4-triazoline-3,5-diones generated by in situ oxidation of the appropriate hydrazides with phenylseleninic anhydride or phenylseleninic acid.Diaryltelluroxide and diphenylselenoxide are also efficient oxidants.The diene system can be smoothly regenerated by alkaline hydrolysis.