ChemicalBook Product Catalog Chemical Reagents Organic reagents Thiol / thiol 2-METHYL-1,3-DITHIANE

2-METHYL-1,3-DITHIANE

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 Building Blocks;Heterocyclic Compounds;Ring Systems;Heterocyclic Building Blocks;Others;S-Containing
Mol File:6007-26-7.mol
2-METHYL-1,3-DITHIANE Structure
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
Odorat 0.10 % in dipropylene glycol. sulfurous
Odor Typesulfurous
Water Solubility Not miscible or difficult to mix in water. Soluble in alcohol.
BRN 102766
LogP2.265 (est)
CAS DataBase Reference6007-26-7(CAS DataBase Reference)
Safety Information
Safety Statements 23-24/25
RIDADR 3334
WGK Germany 3
RTECS JO5263000
HS Code 2934999090
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
2-METHYL-1,3-DITHIANE Usage And Synthesis
UsesIt 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.
Synthesis Reference(s)Tetrahedron Letters, 27, p. 6305, 1986 DOI: 10.1016/S0040-4039(00)87793-X
General Description2-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 MethodsWash 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 materialsSodium hydroxide-->Hydrochloric acid-->Dichloromethane-->Sodium sulfate-->Benzene-->Boron trifluoride diethyl etherate-->Acetaldehyde-->1,3-Dimercaptopropane
4-(1,3-dithian-2-yl)phenyl 2,3,4,5,6-pentamethylbenzenesulfonate 4-(1,3-dithian-2-yl)phenyl 4-methoxybenzenesulfonate 5α-[1-(2-Chloroethyl)3-nitrosoureido]-2α-methyl-1,3-dithiane 1,1,3,3-tetraoxide 2-(2-[(4-CHLOROPHENYL)SULFANYL]-5-NITROPHENYL)-1,3-DITHIANE RARECHEM AM UA 0008 2-PHENYL-1,3-DITHIANE 2-Ethylidene-3-methyl-1,4-dithiane 3-(1,3-DITHIAN-2-YL)-PENTANE-2,4-DIONE 4-(1,3-DITHIAN-2-YL)PHENYL 2,4,6-TRIMETHYLBENZENESULFONATE 4-(1,3-DITHIAN-2-YL)PHENYL 4-BROMOBENZENESULFONATE 1-[3-CHLORO-5-(TRIFLUOROMETHYL)-2-PYRIDINYL]-3-(1,3-DITHIAN-2-YL)-1H-INDOLE 2-[4-(1,3-DITHIAN-2-YL)PHENOXY]THIOACETAMIDE Ethyl 1,3-dithiane-2-carboxylate 2-(5-BROMO-2-METHOXYPHENYL)-1,3-DITHIANE RARECHEM AM UA 0011 2-Hexyl-2-methyl-1,3-dithiane BIS(1,3-DITHIAN-2-YL)METHANE 4-(1,3-DITHIAN-2-YL)PHENYL 4-FLUOROBENZENESULFONATE
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