55536-75-9Relevant academic research and scientific papers
Substituted Hantzsch Esters as Versatile Radical Reservoirs in Photoredox Reactions
Gu, Fangjun,Huang, Wenhao,Liu, Xu,Chen, Wenxin,Cheng, Xu
supporting information, p. 925 - 931 (2018/01/04)
Substituted Hantzsch esters can act as radical reservoirs in photoredox reactions, steadily releasing a carbon radical and a hydrogen atom radical in the absence of an additional electron acceptor. We propose that radical release by substituted Hantzsch esters occurs via a mechanism involving an internal redox cycle. Cinnamidecinnamides, styrenes, α,β-unsaturated acids, and diarylethenes could be alkylated smoothly with these reagents. (Figure presented.).
AN UNUSUAL AROMATIZATION OF HANTZSCH-TYPE 4-ANTIPYRYL-1,4-DIHYDROPYRIDINES
Eynde, Jean-Jacques Vanden,Mayence, Annie,Maquestiau, Andre,Anders, Ernst
, p. 815 - 822 (2007/10/02)
Under acidic conditions, Hantzsch-type 4-antipyryl-1,4-dihydropyridines undergo an elimination of the 4-substituent to yield 4-unsubstituted pyridines and antipyrine.The mechanism and scope of the reaction are discussed.
