92581-76-5Relevant academic research and scientific papers
Catalytic nucleophilic acyl substitution of anhydrides by amphoteric vanadyl triflate
Chen, Chien-Tien,Chang, I-Hsin,Lin, Jin-Sheng,Liu, Chin-Jing,Chou, Y-Chen,Kuo, Jen-Huang,Li, Chun-Hsin,Barhate,Hon, Sang-Wen,Li, Tai-Wei,Chao, Shi-Deh,Liu, Chia-Cheng,Li, Ying-Chieh
, p. 3729 - 3732 (2007/10/03)
Figure presented Among four vanadyl species examined, vanadyl triflate was the most efficient catalyst to facilitate nucleophilic acyl substitution of anhydrides with a myriad array of alcohols, amines, and thiols in high yields and high chemoselectivity. By using mixed-anhydride technique, one can achieve oleate and peptide syntheses. In marked contrast to common metal Inflates, the amphoteric character of the V=O unit in vanadyl species was proven to be responsible for the catalytic profile in this process.
Aldol reaction of enol esters catalyzed by cationic species paired with tetrakis(pentafluorophenyl)borate
Yanagisawa,Shimamura,Iida,Matsuo,Mukaiyama
, p. 1838 - 1840 (2007/10/03)
The crossed aldol reaction of enol esters, which are weak carbon nucleophiles, with aldehydes was effectively carried out under mild conditions by using a catalytic amount of several cationic species paired with tetrakis(pentafluorophenyl)borate.
