2-METHYL-1,3-DITHIANE

CAS No.：6007-26-7

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2-METHYL-1,3-DITHIANE Basic information

Product Name:	2-METHYL-1,3-DITHIANE
Synonyms:	2-methyl-3-dithiane;2-methyl-m-dithian;2-Methyl-m-dithiane;Acetaldehyde, cyclic trimethylene mercaptal;m-Dithiane, 2-methyl-;Methyl-2 dithiane-1,3;methyl-2dithiane-1,3;2-Methyl-1,3-dithiane 98%
CAS:	6007-26-7
MF:	C5H10S2
MW:	134.26
EINECS:	227-859-6
Product Categories:	Building Blocks;Chemical Synthesis;Heterocyclic Compounds;Ring Systems;Heterocyclic Building Blocks;Heterocyclic Building Blocks;Others;S-Containing
Mol File:	6007-26-7.mol

2-METHYL-1,3-DITHIANE Chemical Properties

Boiling point	56-59 °C/3 mmHg (lit.)
density	1.121 g/mL at 25 °C (lit.)
refractive index	n20/D 1.560(lit.)
Fp	180 °F
form	Liquid
color	Colorless to brown
Water Solubility	Not miscible or difficult to mix in water. Soluble in alcohol.
BRN	102766
CAS DataBase Reference	6007-26-7(CAS DataBase Reference)

Safety Information

Safety Statements	23-24/25
RIDADR	3334
WGK Germany	3
RTECS	JO5263000
HS Code	2934999090

MSDS Information

Provider	Language
SigmaAldrich	English
ALFA	English

2-METHYL-1,3-DITHIANE Usage And Synthesis

Uses	It has been employed in the synthesis of methyl ketones. 2-Methyl-1,3-dithiane is suitable for use in the preparation of potassium trifluoro(2-methyl-1,3-dithiano)borate.
Uses	2-Methyl-1,3-dithiane is suitable for use in the preparation of potassium trifluoro(2-methyl-1,3-dithiano)borate.
Synthesis Reference(s)	Tetrahedron Letters, 27, p. 6305, 1986 DOI: 10.1016/S0040-4039(00)87793-X
General Description	2-Methyl-1,3-dithiane is a versatile acyl anion equivalent. Role of hyperconjugation in the conformational analysis of 2-methyl-1,3-dithiane has been reported.
Purification Methods	Wash the dithiane with H2O, 2.5 M aqueous NaOH, H2O, brine, dry over K2CO3 (use toluene as solvent if the volume of reagent is small), filter, evaporate and distil the colourless residue. IR film: 1455, 1371 and 1060 (all medium and CH3), 1451m, 1422s, 1412m, 1275m, 1236m, max 1190m, 1171w, 918m and 866w (all dithiane) cm-1 [Corey & Erickson J Org Chem 36 3553 1971, Seebach & Corey J Org Chem 40 231 1975]. [Beilstein 19 III/IV 49, 19/1 V 53.]

2-METHYL-1,3-DITHIANE Preparation Products And Raw materials

Raw materials

Sodium hydroxide-->Hydrochloric acid-->Dichloromethane-->Sodium sulfate-->Benzene-->Boron trifluoride diethyl etherate-->Acetaldehyde-->1,3-Dimercaptopropane

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