(-)-1,4-DI-O-TOSYL-2,3-O-ISOPROPYLIDENETHREITOL

The 1,3-Dioxolane-4,5-dimethanol,2,2-dimethyl-, 4,5-bis(4-methylbenzenesulfonate), (4S,5S)- is an organic compound with the formula C₂₁H₂₆O₈S₂. The IUPAC name of this chemical is [(4S,5S)-2,2-dimethyl-5-[(4-methylphenyl)sulfonyloxymethyl]-1,3-dioxolan-4-yl]methyl 4-methylbenzenesulfonate. With the CAS registry number 37002-45-2 and EINECS 253-306-3, it is also named as (4S-trans)-2,2-Dimethyl-1,3-dioxolane-4,5-dimethyl bis(toluene-p-sulphonate). The product's categories are Biochemistry; Dioxanes & Dioxolanes; Dioxolanes; O-Substituted Sugars; Sugar Alcohols; Sugars. It is white to cream crystalline powder which should be sealed in the container and stored in the cool, well-ventilated and dry place at the temperature of 0-6 °C.

The other characteristics of 1,3-Dioxolane-4,5-dimethanol,2,2-dimethyl-, 4,5-bis(4-methylbenzenesulfonate), (4S,5S)- can be summarized as: (1)ACD/LogP: 3.03; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.03; (4)ACD/LogD (pH 7.4): 3.03; (5)ACD/BCF (pH 5.5): 118.17; (6)ACD/BCF (pH 7.4): 118.17; (7)ACD/KOC (pH 5.5): 1059.5; (8)ACD/KOC (pH 7.4): 1059.5; (9)#H bond acceptors: 8; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 8; (12)Polar Surface Area: 121.96 Å²; (13)Index of Refraction: 1.539; (14)Molar Refractivity: 115.65 cm³; (15)Molar Volume: 368.9 cm³; (16)Polarizability: 45.84×10^-24 cm³; (17)Surface Tension: 41.7 dyne/cm; (18)Density: 1.275 g/cm³; (19)Flash Point: 321.7 °C; (20)Enthalpy of Vaporization: 87.06 kJ/mol; (21)Boiling Point: 608.3 °C at 760 mmHg; (22)Vapour Pressure: 4.31E-14 mmHg at 25°C.

Uses of 1,3-Dioxolane-4,5-dimethanol,2,2-dimethyl-, 4,5-bis(4-methylbenzenesulfonate), (4S,5S)-: It can be used to produce (2S,3S)-3-isopropoxy-butan-2-ol. This reaction needs reagent LiAlH₄ and solvent diethyl ether by heating. The reaction time is 24 hours. The yield is 84.5%.

People can use the following data to convert to the molecule structure. 
1. SMILES:O=S(=O)(OC[C@@H]2OC(O[C@H]2COS(=O)(=O)c1ccc(cc1)C)(C)C)c3ccc(cc3)C
2. InChI:InChI=1/C21H26O8S2/c1-15-5-9-17(10-6-15)30(22,23)26-13-19-20(29-21(3,4)28-19)14-27-31(24,25)18-11-7-16(2)8-12-18/h5-12,19-20H,13-14H2,1-4H3/t19-,20-/m0/s1
3. InChIKey:KPFDKWNWYAXRNJ-PMACEKPBBH
4. Std. InChI:InChI=1S/C21H26O8S2/c1-15-5-9-17(10-6-15)30(22,23)26-13-19-20(29-21(3,4)28-19)14-27-31(24,25)18-11-7-16(2)8-12-18/h5-12,19-20H,13-14H2,1-4H3/t19-,20-/m0/s1
5. Std. InChIKey:KPFDKWNWYAXRNJ-PMACEKPBSA-N