126301-30-2

Usage

Chemical Properties

white crystalline powder

InChI:InChI=1/C3H9NO3S/c1-3(4)2-8(5,6)7/h3H,2,4H2,1H3,(H,5,6,7)/t3-/m0/s1

Upstream product

• 126301-21-1 (S)-2-aminopropanol methanesulfonate hydrochloride 
• 42163-67-7 (S)-4-methyl-1,3-thiazolidine-2-thione 
• 52340-20-2 (S)-2-methylaziridine 

Downstream Products

• 1300858-65-4 C₁₁H₁₅NO₅S 

Relevant academic research and scientific papers

Asymmetric synthesis of 2-methyltaurine

Enantiomeric (R)- and (S)-2-aminopropanesulfonic acids, 4a and 4b, were prepared in good yields and high enantiomeric purities (> 99% ee) from (S)-5a and (R)-1-amino-2-propanol 5b respectively, using a four step synthesis. The absolute configuration of (S)-enantiomer 4b was established by X-ray analysis.

A versatile synthesis of various substituted taurines from vicinal amino alcohols and aziridines

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. The stereochemistry 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 optically active substituted taurines.

Properties and Reactions of Substituted 1,2-Thiazetidine 1,1-Dioxides: Chiral Mono- and Bicyclic 1,2-Thiazetidine 1,1-Dioxides from α-Amino Acids

New chiral mono- and bicyclic β-sultams, valuable building blocks for drug synthesis, have been prepared from L-Ala, L-Val, L-Leu, L-Ile, L-Phe, L-Cys, L-Ser, L-Thr, and D-penicillamine by transformation of the COOH group into a methylsulfonyl chloride function, followed by cyclization under basic conditions. Selected properties, derivatives, and reactions of the β-sultams are described.

A new and expeditious asymmetric synthesis of (R)- and (S)-2-aminoalkanesulfonic acids from chiral amino alcohols

The mechanism for the transformation of β-amino alcohol methanesulfonate hydrochlorides into sodium β-amino alkanesulfonates using sodium sulfite was investigated. The results show that sodium sulfite initially neutralizes the β-amino alcohol methanesulfonate hydrochloride to give a free β-amino alcohol methanesulfonate, which then cyclizes to a 2-alkylaziridine. Attack by the previously formed sodium bisulfite at the less hindered carbon atom of the aziridine ring then yields a β-amino alkanesulfate sodium salt. Based on this mechanistic proposal, a new and rapid asymmetric synthesis 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 β-amino alkanesulfonic acids.

Syntheses and Properties of Optically Active 2-Substituted Taurines

The synthesis of nine 2-substituted taurines (5a-i), including the marine natural product D-cysteinolic acid (5f), are described.These involve the successive conversion of N-t-butoxycarbonyl(Boc)-protected amino acid esters (1) into the N-Boc-2-aminoethanols (2), their O-mesylated derivatives (3), the deprotected 2-aminoethyl methanesulphonates (4), followed by the replacement of the mesyloxy group by a sulpho group to give the optically active taurines (5a-e,g-i).Hydrogenolysis of 2-benzyloxymethyltaurine (5e) gives D-cysteinolic acid (5f).The structure of another of the products, (5b), is also confirmed by an alternative synthesis from N-Boc-valine methyl ester (1b) via twoβ-bromoethylamine derivatives, (6b) and (7b).