137105-97-6Relevant articles and documents
Self-assembled ion-pair organocatalysis - Asymmetric Baeyer-Villiger oxidation mediated by flavinium-cinchona alkaloid dimer
Poudel, Pramod Prasad,Arimitsu, Kenji,Yamamoto, Kana
supporting information, p. 4163 - 4166 (2016/03/19)
An ion-pair catalyst generated by assembly of a chiral flavinium and a cinchona alkaloid dimer for use in asymmetric Baeyer-Villiger oxidation is presented. Ion-pair formation is essential for enhancing the catalytic activity and stereoselectivity. The catalyst is applicable to structurally diverse 3-substituted cyclobutanones, providing good to excellent enantioselectivities (up to 98: 2 e.r.). This study provides the first example of self-assembly of a flavin derivative and a base to form a chiral reaction site that enables a highly stereoselective reaction to occur.
The synthesis of Fmoc-O-allyl β-serine
Bergman, Ylva,Ciampini, Marisa,Jalal, Sania,Lagiakos, Helen Rachel,Aguilar, Marie-Isabel,Perlmutter, Patrick
experimental part, p. 2861 - 2863 (2009/06/28)
Two concise routes for the synthesis of the title amino acid have been developed. The first route employs Seebach's general approach [Seebach, D.; Lelais, G.; Micuch, P.; Josien-Lefebvre, D.; Rossi, F. Helv. Chim. Acta 2004, 87, 3131] with Arndt Eistert h