Reactions of trinitromethyl-1,3,5-triazines with triphenylphosphine in the presence of hydrogen donors and a dipolarophile
摘要:
2-Dialkylamino-4-methoxy-6-trinitromethyl-1,3,5-triazines reacted with triphenylphosphine in toluene in the presence of primary aliphatic alcohols as proton donors to give the corresponding 6-[hydroxyimino (nitro)methyl)-1,3,5-triazines. Analogous reactions in the presence of prop-2-yn-1-ol at elevated temperature resulted in the formation of [3 + 2]-dipolar cycloaddition products, 3-(1,3,5-triazinyl)-5-hydroxymethylisoxazoles.