Efficient Synthesis of Taurine and Structurally Diverse Substituted Taurines from Aziridines
作者:Libo Hu、Hui Zhu、Da-Ming Du、Jiaxi Xu
DOI:10.1021/jo070470c
日期:2007.6.1
Taurine and substituted taurines were synthesized efficiently from aziridines via ring-opening reaction with thioacetic acid, oxidation with performic acid, and hydrolysis in hydrochloric acid. The current method shows more benefit in purification and efficiency in the preparation of taurine and structurally diverse 2-substituted, 2,2-disubstituted, and 1,2-, 2,2-, and 2,N-alkylene taurines.
A Versatile Synthesis of Various Substituted Taurines from Vicinal Amino Alcohols and Aziridines
作者:Ning Chen、Weiyi Jia、Jiaxi Xu
DOI:10.1002/ejoc.200900759
日期:2009.11
Taurine and structurally diverse substituted taurines have been synthesized by peroxyformic acid oxidation of the thiazolidine-2-thione intermediates generated from vicinal amino alcohols or aziridines and carbon disulfide. Thestereochemistry and mechanisms of the reactions are disscussed. The method is a salt-free and versatile route, convenient in terms of purification, and can be used to synthesize
Expeditious and Practical Synthesis of Various Substituted Taurines from Amino Alcohols
作者:Jiaxi Xu、Wei Zhang、Boyuan Wang、Ning Chen、Da-Ming Du
DOI:10.1055/s-2007-1000861
日期:2008.1
Various substituted taurines have been synthesized expeditiously and practically in satisfactory to good yields directly from amino alcohols using a two-step, one-pot procedure, in which the amino alcohols undergo sulfuric acid esterification and subsequent sodium sulfite substitution. Treatment of amino-substituted secondary alcohols using the same procedure gave 2-substituted or 1,2-di-substituted
A new and expeditious asymmetric synthesis of (R)- and (S)-2-aminoalkanesulfonic acids from chiral amino alcohols
作者:Jiaxi Xu
DOI:10.1016/s0957-4166(02)00312-9
日期:2002.6
mechanistic proposal, a new and rapid asymmetricsynthesis of (R)- and (S)-2-aminoalkanesulfonic acids from chiral amino alcohols was developed. Chiral amino alcohols were converted to chiral aziridines through the Wenker method or Mitsunobu reaction and the resulting aziridines were reacted with sodium bisulfite to produce chiral α-amino alkanesulfonic acids.
Hybrid sulfonophosphinopeptides were first and convergently synthesized in satisfactory to good yields via the Mannich-type reaction of N-protected 2-aminoalkanesulfonamides, aromatic aldehydes, and aryldichlorophosphines and subsequent aminolysis with amino esters.