787632-48-8Relevant academic research and scientific papers
Oxazine formation by MsCl/Et3N as a convenient tool for the stereochemical interconversion of the hydroxyl group in N-acetyl 1,3-aminoalcohols. Asymmetric synthesis of N-acetyl L-xylo- and L-arabino-phytosphingosines
Singh, Om V.,Kampf, Dorothy J.,Han, Hyunsoo
, p. 7239 - 7242 (2004)
Use of MsCl/Et3N was proven to provide a convenient synthetic tool for the stereochemical intercoversion of the hydroxyl group in N-acetyl 1,3-aminoalcohols. Thus, under these conditions, the alcohols 4 and 6 smoothly converted to the oxazines
Stereodivergent total asymmetric synthesis of polyhydroxylated pyrrolidines via tandem allylic epoxidation and intramolecular cyclization reactions
Singh, Satwinder,Han, Hyunsoo
, p. 6349 - 6352 (2007/10/03)
Epoxidation of the allylic alcohols 10 and 11 using the VO(acac) 2/t-BuOOH system followed by an intramolecular 5-exo cyclization of the resulting δ-epoxycarbamates 12, 13, 18, and 19 has been shown to provide a general and efficient solution f
A highly efficient and stereoselective synthesis of polyhydroxylated pyrrolidines via regioselective asymmetric aminohydroxylation (RAA) and intramolecular amidomercuration reactions
Singh, Satwinder,Chikkanna, Dinesh,Singh, Om V.,Han, Hyunsoo
, p. 1279 - 1282 (2007/10/03)
A new synthetic strategy, which allows a complete stereochemical control of all four chiral centers of two important polyhydroxylated pyrrolidines 8 and 9, is described. The corner-stone of the present strategy is a successful implementation of the regios
A general methodology for the asymmetric synthesis of 1-deoxyiminosugars
Singh, Om V.,Han, Hyunsoo
, p. 2387 - 2391 (2007/10/03)
A general methodology for the stereoselective synthesis of 1-deoxymannojirimycin and its three other stereoisomers is described. The achiral olefin 6 was converted through the common olefin intermediate 12 to the target compounds in a highly stereocontrol
