DL-Threitol

Bromohydrins 161 and 162 were converted57 into peracetylated erythritol and DL-threitol on treatment with potassium acetate in anhydrous acetic acid. 

We have tested several variations of redox maintaining additives to optimize the renaturation yield. These include 1,4-dithio-DL-threitol (DTT) to maintain... 

The renaturations were carried out in 20 m.M Tris/HCl with the following redox reagents added GSSG, oxidized glutathione GSH, reduced glutathione DTT, 1,4-Dithio-DL-threitol. 

DIAN. See Bisphenol A Dianal. See Acrylic resin 1,4 3,6-Dianhydro-2,5-di-0-methyl-D-glucitol. See Dimethyl isosorbide 1,4 3,6-Dianhydro-D-glucitol monolaurate. See Isosorbide laurate (Z)-Dianhydro-D-mannitol, mono-9-octadecenoate Dianhydromannitol monooleate D-Dianhydromannitol monooleate. See Mannide monooleate 1,4 3,6-Dianhydrosorbitol 2,5-dinitrate. See Isosorbide dinitrate 1,2 3,4-Dianhydro-DL-threitol. See DL-Diepoxybutane p,p -Dianiline. See Benzidine 1,4-Dianilinobenzene. See N,N -Diphenyl-p-phenylenediamine... 

C-Methyl-L-threitol, M-231 2-C-Methyl-DL-threitol, M-231 A -Methyl-i -(iV-threonyIcarbonyI)adenosine, R-114... 

DL-Threitol, tetraacetate m.p. 54-55 dibenzylidene derivative m.p. 217-219 was synthesized by novel means starting from 3,4-epoxy 1-butene (4). The steps required are given as follows ... 

Anhydroerythritol has been converted into 1,4-anhydro-DL-threitol by chloride displacement of a toluene-p-sulphonyloxy-group. The dimethyl [2]-cryptand (59) has been obtained in a five-step synthesis from pentaerythritol, and was shown to form strong complexes with potassium ions in deuteriochloro-form-carbon disulphide solution. ... 

Figure 7.8 Synthesis of hyperbranched polytetritol (PolylOa and PolylOb) by ring-opening multibranching polymerization of 2,3-anhydroerythritol (10a) and 2,3-anhydro-DL-threitol (10b), respectively.

The resulting polytetritols were the hyperbranched glyco-conjugated polymers PolylOa and PolylOb essentially consisting of DL-threitol and erythritol units, respectively, which differed from the hyperbranched polytetritols prepared from 1,4-anhydroerythritol (6a) and 1,4-anhydro-L-threitol (6b). 

Imai, T., Nawa, Y., Kitajyo, Y. et al. (2005) Synthesis of hyperbranched polytetritol by ring-opening multibranching polymerizations of 2,3-anhydroerythritol and 2,3-anhydro-Dl-threitol. Macromolecules, 38,1648-1654. 

DL-Butadiene dioxide containing 0.5% tetraethylammonium bromide heated at 120° under 97--77 atm. GO2 in a shaking autoclave until the pressure remains constant after ca. 4 hrs. DL-threitol dicarbonate. Y 90%. Also erythritol dicarbonate s. H. R. Meyer, Helv. 49, 1935 (1966). 

---