1,3,2-Dioxathiolane,2-oxide (3741-38-6)

The Cyclic ethylene sulfite with the cas number 3741-38-6. It is also called 1,3,2-dioxathiolane 2-oxide, which is also it's IUPAC name, and it's system Names are (1)1,3,2-Dioxathiolane, 2-oxide ; (2)Ethylene glycol, cyclic sulfite (8CI) ; (3)Ethylene sulphite. It belongs to the following product categories: Biphenyl & Diphenyl ether.

Physical properties about Cyclic ethylene sulfite are: (1)ACD/LogP: -1.31 ; (2)# of Rule of 5 Violations: 0 ; (3)ACD/LogD (pH 5.5): -1.31 ; (4)ACD/LogD (pH 7.4): -1.31 ; (5)ACD/BCF (pH 5.5): 1 ; (6)ACD/BCF (pH 7.4): 1 ; (7)ACD/KOC (pH 5.5): 4.6 ; (8)ACD/KOC (pH 7.4): 4.6 ; (9)#H bond acceptors: 3 ; (10)#H bond donors: 0 ; (11)#Freely Rotating Bonds: 0 ; (12)Polar Surface Area: 54.74Ų ; (13)Index of Refraction: 1.569 ; (14)Molar Refractivity: 21.61 cm³ ; (15)Molar Volume: 65.9 cm³ ; (16)Polarizability: 8.56 ×10^-24cm³ ; (17)Surface Tension: 75.1 dyne/cm ; (18)Density: 1.64 g/cm³ ; (19)Flash Point: 57 °C ; (20)Enthalpy of Vaporization: 39.03 kJ/mol ; (21)Boiling Point: 170.6 °C at 760 mmHg ; (22)Vapour Pressure: 1.94 mmHg at 25°C

Preparation of Cyclic ethylene sulfite: Cyclic ethylene sulfite can be generated from oxirane according to the following chemical equation in SO₂ as reagent, with tetraethylammonium bromide as catalytic agent at 110-120°C for 3 hour(s). Yield is 70 %.

Uses of Cyclic ethylene sulfite: Cyclic ethylene sulfite can be widely used as a reactant in many reaction, for instance, [1,3,2]dioxathiolane 2,2-dioxide can be obtained from Cyclic ethylene sulfite in many conditions. One of it's conditions is that reaction undergo in CCl₄ and H₂O as solvent with RuO₄, sodium hypochlorite as reagent under ambient temperature for 1.5 hour(s). Yield is 73 %.

When you are using this chemical, please be cautious about it as the following: It is quite irritating to eyes, respiratory system and skin. When you are using this chemical, please wear suitable gloves and eye/face protection to avoid contact with skin and eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Besides, Do not breathe dust, because it is quite harmful by inhalation, in contact with skin and if swallowed.

You can still convert the following datas into molecular structure :
(1).SMILES:O=S1OCCO1
(2).InChI:InChI=1/C2H4O3S/c3-6-4-1-2-5-6/h1-2H2

Reported in EPA TSCA Inventory.