89357-35-7Relevant articles and documents
Chiral recyclable dimeric and polymeric Cr(III) salen complexes catalyzed aminolytic kinetic resolution of trans-aromatic epoxides under microwave irradiation
Kureshy, Rukhsana I.,Prathap, K. Jeya,Singh, Surendra,Agrawal, Santosh,Khan, Noor-Ul H.,Abdi, Sayed H.R.,Jasra, Raksh V.
, p. 809 - 815 (2007)
Aminolytic kinetic resolution (AKR) of trans-stilbene oxide and trans-β-methyl styrene oxide proceeded smoothly under microwave irradiation using chiral dimeric and polymeric Cr(III) salen complexes as efficient catalysts, giving regio-, diastereo-, and enantioselective anti-β-amino alcohols in high yields (49%) and chiral purity (ee up to 94%) in case of 4-methylaniline within 2 min. The kinetic resolution system is approximately five times faster than traditional oil bath heating at 70°C and 420 times faster than the reaction conducted at room temperature with concomitant recovery of respective chirally enriched epoxides (ee, 92%) in excellent yields (up to 48%). The catalyst 1 worked well in terms of enantioselectivity than the catalyst 2, but both the catalysts were easily recovered and reused five times with the retention of its efficiency.
Asymmetric ring opening of meso-epoxides with aromatic amines catalyzed by a new proline-based N,N′-dioxide-indium tris(triflate) complex
Gao, Bo,Wen, Yuehong,Yang, Zhigang,Huang, Xiao,Liu, Xiaohua,Feng, Xiaoming
supporting information; experimental part, p. 385 - 390 (2009/04/08)
The catalytic asymmetric ring opening of meso-epoxides with aromatic amines was achieved using a new proline-based N,N′-dioxide-indium tris(triflate) complex in high yields (up to 99%) with excellent enantioselectivities (up to 99% ee) under mild conditio
Stereochemistry of Imino-group Reduction. Part 3. The Hydride Reduction of Achiral Benzil Monoimines
Alcaide, Benito,Lopez-Mardomingo, Carmen,Perez-Ossorio, Rafael,Plumet, Joaquin
, p. 1649 - 1654 (2007/10/02)
The RR,SS:RS,SR ratio of diastereoisomeric amino-alcohols obtained from the lithium aluminium hydride reduction of the monoimines prepared by reaction of benzil and various aliphatic and aromatic achiral amines has been determined.Stereochemical results a