1215035-93-0Relevant academic research and scientific papers
Asymmetric Catalysis with a Mechanically Point-Chiral Rotaxane
Cakmak, Yusuf,Erbas-Cakmak, Sundus,Leigh, David A.
supporting information, p. 1749 - 1751 (2016/03/01)
Mechanical point-chirality in a [2]rotaxane is utilized for asymmetric catalysis. Stable enantiomers of the rotaxane result from a bulky group in the middle of the thread preventing a benzylic amide macrocycle shuttling between different sides of a prochi
Heterogeneous Dipeptide-Catalyzed α-Amination of Aldehydes in a Continuous-Flow Reactor: Effect of Residence Time on Enantioselectivity
?tv?s, Sndor B.,Szloszr, Aliz,Mndity, Istvn M.,Fül?p, Ferenc
, p. 3671 - 3680 (2016/01/25)
A solid-supported dipeptide-catalyzed continuous-flow process was developed for the direct enantioselective α-amination of aldehydes with dibenzyl azodicarboxylate as the electrophilic nitrogen source. With residence time control as an efficient tool for
ORGANOCATALYST
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Page/Page column 11, (2011/04/14)
The present invention provides an organocatalyst of formula (I), wherein R1 is —H, —OH, —O—Si(R4)(R5)(R6) or C1-6alkoxy, in which R4, R5 and R6 are identical or differ
Direct asymmetric α-amination of aldehydes with azodicarboxylates in ionic liquids catalyzed by imidazolium ion-tagged proline organocatalyst
Ding, Xiong,Jiang, Hong-Lai,Zhu, Cheng-Jian,Cheng, Yi-Xiang
experimental part, p. 6105 - 6107 (2011/01/04)
Direct asymmetric α-amination of unmodified aldehydes with azodicarboxylates in ionic liquids in the presence of imidazolium ion-tagged l-proline organocatalyst 1 gives excellent enantioselectivities (up to 98% ee) and high chemical yields. The system can
Remarkable reaction rate and excellent enantioselective direct α-amination of aldehydes with azodicarboxylates catalyzed by pyrrolidinylcamphor-derived organocatalysts
Liu, Pang-Min,Chang, Chihliang,Reddy, Raju Jannapu,Ting, Ying-Fang,Kuan, Hsuan-Hao,Chen, Kwunmin
supporting information; experimental part, p. 42 - 46 (2010/03/24)
Remarkable reaction rate and excellent enantioselective direct α-amination of unmodified aldehydes with various azodicarboxylates was catalyzed by pyrrolidinylcamphor organocatalyst 2a (5 mol-%) to provide the desired aminated products with excellent chemical yields and high to excellent levels of enantioselectivity (up to >99%ee) at 0 °C in CH 2Cl2.
