A polynomial segment model based statistical parametric speech synthesis sytem

Application of the aza‐Wittig reaction for efficient synthesis of diversely substituted benzo[f]Chromeno[2,3‐d]pyrimidine and benzo[f]chromeno[2,3‐d][1,2,4]triazolopyrimidine derivatives

“…This is presumably because -N-Ar is generated preferentially from the more acidic -NHAr. Identical selectivity is also reported in comparable cases [34].…”