132098-51-2Relevant academic research and scientific papers
Synthesis of atactic and isotactic poly(1,2-glycerol carbonate)s: Degradable polymers for biomedical and pharmaceutical applications
Zhang, Heng,Grinstaff, Mark W.
supporting information, p. 6806 - 6809 (2013/06/05)
The synthesis and characterization of atactic and isotactic linear poly(benzyl 1,2-glycerol carbonate)s are reported. The poly(benzyl 1,2-glycerol carbonate)s were obtained via the ring-opening copolymerization of rac-/(R)-benzyl glycidyl ether with COsu
Unsymmetric salen ligands bearing a Lewis base: Intramolecularly cooperative catalysis for cyanosilylation of aldehydes
Wen, Ye-Qian,Ren, Wei-Min,Lu, Xiao-Bing
, p. 6323 - 6330 (2011/10/09)
A series of unsymmetric salen ligands derived from 1,2-diaminocyclohexane bearing an appended Lewis base on the three-position of one aromatic ring were synthesized by the reaction of various functional salicyaldehydes with the condensation product of 1,2-diaminocyclohexane mono(hydrogen chloride) and 3,5-di-tert-butylsalicylaldehyde. These ligands in conjunction with Ti(O iPr)4 exhibited excellent activity in catalyzing the cyanosilylation of aldehydes with trimethylsilyl cyanide (TMSCN) at mild conditions. The highest activity was observed in the catalyst system with regard to the salen ligand bearing a diethylamino group, which proved to be active even at a high [aldehyde]/[catalyst] ratio up to 50000. In a low catalyst loading of 0.05 mol%, the quantitative conversion of benzaldehyde to the corresponding cyanosilylation product was found within 10 min. at ambient temperature. An intramolecularly cooperative catalysis was proposed wherein the central metal Ti(iv) is suggested to play a role of Lewis acid to activate aldehydes while the appended Lewis base to activate TMSCN.
Mechanistic aspects of the copolymerization of CO2 with epoxides using a thermally stable single-site cobalt(III) catalyst
Ren, Wei-Min,Liu, Zhong-Wen,Wen, Ye-Qian,Zhang, Rong,Lu, Xiao-Bing
, p. 11509 - 11518 (2011/03/21)
The mechanism of the copolymerization of CO2 and epoxides to afford the corresponding polycarbonates catalyzed by a highly active and thermally stable cobalt(III) complex with 1,5,7-triabicyclo[4,4,0] dec-5-ene (designated as TBD, a sterically
