1080490-64-7Relevant academic research and scientific papers
Enantioselective O-acetylcyanation/cyanoformylation of aldehydes using catalysts with built-in crown ether-like motif in chiral macrocyclic V(V) salen complexes
Khan, Noor-Ul H.,Sadhukhan, Arghya,Maity, Nabin C.,Kureshy, Rukhsana I.,Abdi, Sayed H.R.,Saravanan,Bajaj, Hari C.
scheme or table, p. 7073 - 7080 (2011/10/07)
Chiral macrocyclic V(V) salen complexes 1a-f derived from macrocyclic ligands obtained by the reaction of 1R,2R-(-) diaminocyclohexane/(1R,2R)-(+)-1, 2-diphenylethylenediamine with bis-aldehydes 2 and 3 were synthesized and used as efficient catalysts in asymmetric cyanation reactions. The V(V) catalysts demonstrated excellent performance (product yields and ees up to 99%) with potassium cyanide (KCN) and sodium cyanide (NaCN). The catalytic system also performed very well with a safer source of cyanide-ethyl cyanoformate to give cyanohydrin carbonates in excellent yield and ee (up to 97%). The V(V) macrocyclic salen complex 1b retained its performance at multi-gram level and was conveniently recycled for a number of times.
Enantioselective cyanoformylation of aldehydes catalyzed with solid base mediated chiral V(V) salen complexes
Khan, Noor-Ul H.,Agrawal, Santosh,Kureshy, Rukhsana I.,Abdi, Sayed H. R.,Pathak, Kavita,Bajaj, Hari C.
experimental part, p. 153 - 158 (2010/09/04)
Polymeric and monomeric V(V) chiral salen complexes-catalyzed enantioselective ethyl cyanoformylation of aldehydes using ethyl cyanoformate as a source of cyanide was accomplished in the presence of several basic cocatalysts viz., NaOH, KOH, basic Al
Vanadium(V) salen complex catalyzed highly enantioselective cyanoformylation of aldehydes in the presence of imidazole as a cocatalyst
Khan, Noor-Ul H.,Agrawal, Santosh,Kureshy, Rukhsana I.,Abdi, Sayed H. R.,Jeya Prathap,Jasra, Raksh V.
scheme or table, p. 4511 - 4515 (2009/04/19)
Highly enantioselective cyanoformylation of aldehydes catalyzed by V V chiral salen complex by using ethyl cyanoformate as a source of cyanide was accomplished in the presence of several cocatalysts. Excellent yields and ee values for the resul
