133625-99-7Relevant academic research and scientific papers
Regio- and stereoselective synthesis of 1,3-aminoalcohol derivatives from allylamine derivatives via internal sulfinyl group participation
Raghavan, Sadagopan,Rajender,Joseph, Suju C.,Rasheed, M. Abdul,Kumar, K. Ravi
, p. 365 - 379 (2007/10/03)
The regio- and stereoselective preparation of 1,3-aminoalcohol derivatives from protected allylamines via intramolecular participation by the sulfinyl group is reported. A carbamate protecting group on nitrogen leads to products arising from nucleophilic
Investigations of a nucleophilic alaninol synthon derived from serine
Sibi, Mukund P.,Rutherford, Drew,Renhowe, Paul A.,Li, Biqin
, p. 7509 - 7516 (2007/10/03)
A nucleophilic synthon, (S)-(+)-4-(2-oxazolidonyl)-methyltriphenylphosphinyl iodide 6, available from L-serine in five steps (overall yield of 52%), reacts with aldehydes to produce alkenes in good to excellent yields (74-89%) and, in some cases, provides
Synthetic Elaboration of the Side Chain of (R)-2,2-Dimethyl-3-(tert-butoxycarbonyl)-4-ethynyloxazolidine: A New Regio- And Stereoselective Strategy to δ-Functionalized β-Amino Alcohols
Reginato, Gianna,Mordini, Alessandro,Caracciolo, Massimo
, p. 6187 - 6192 (2007/10/03)
An investigation of the reactivity of ethynyloxazolidine 2 is presented. Functionalization at the acetylenic position has been found to occur very easily using the mild Sonogashira conditions. Addition of tributyltin cuprate 1 provided the corresponding stannylated (E)-ethenyloxazolidine 3, a new chiral building block which has been reacted with electrophiles under Pd catalysis. The reaction sequence occurred without racemization and showed an easy and mild procedure for the regio- and stereoselective synthesis of unsaturated amino alcohols.
Synthesis of Chiral Vinylglycines
Beaulieu, Pierre L.,Duceppe, Jean-Simon,Johnson, Carolyne
, p. 4196 - 4204 (2007/10/02)
(R)- or (S)-benzyl 4-formyl-2,2-dimethyl-3-oxazolidinecarboxylate (7a) and (R)- or (S)-1,1-dimethylethyl 4-formyl-2,2-dimethyl-3-oxazolidinecarboxylate (7b), readily available from serine, react with Wittig reagents to give alkenes 8.Selective deprotection followed by oxidation of the resulting unsaturated amino alcohols 9 provides vinylglycines 5 of defined configuration (>95percent ee) and double-bond geometry.D-Vinylglycines are obtained from L-serine, and conversely, D-serine gives β,γ-unsaturated amino acids with the L configuration.The double-bond geometry is controlled by the nature of the phosphorous ylide employed.The scope and limitations of this new methodology for the preparation of chiral vinylglycines is examined.
