Cyclohexyl mercaptan
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- Category :
Organic chemicals and Derivatives/Aroma compounds
- CAS NO : 1569-69-3
- EC NO : 216-378-7
- Molecular Formula : C6H12S
- Main Specifications : 99% min
- Synonyms : Cyclohexanethiol;Cyclohexylmercaptan;
Package: 25kg，50kg 200kg
Uses : an intermediate for the synthesis of pharmaceuticals and pesticides
Molecular Structure:
Product description:
What is the chemical of Cyclohexyl mercaptan ?
Appearance: colorless to light yellow liquid with a strong garlic odor ;
Assay：99%min by GC ;
IR Identity: conform to standard ;
HNMR： conform to standard ;
carbon spectrum: conform to standard ;
Water by K. F.:0.5% max or as per the customer’s request ;
Loss on drying:0.5% max. or as per the customer’s request ;
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As an intermediate for the synthesis of pharmaceuticals and pesticides, it can also be applied in the field of flavorings. In industrial production, it is commonly used to prepare anti-coking agents such as cyclohexyl thiophthalimide
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There are primarily two production methods: the cyclohexanol method and the cyclohexene method.
The cyclohexanol method involves the preparation of the product through a condensation reaction between cyclohexanol, thiourea, and hydrobromic acid, followed by hydrolysis, extraction, and vacuum distillation. The specific steps are as follows: Add cyclohexanol, thiourea, and hydrobromic acid (40% concentration) in a molar ratio of 1:1:25 to a three-neck flask, stir and reflux under a water bath at 100℃ for more than 50 hours; then add a 50% concentration aqueous solution of sodium hydroxide according to the amount of hydrobromic acid, heat and hydrolyze for 2-3 hours; after the reaction mixture is allowed to stand and stratify, separate the oil layer, acidify the aqueous layer with dilute sulfuric acid, extract it with acetic anhydride, combine the extract with the oil layer, dry it over anhydrous sodium sulfate, and then perform vacuum distillation to collect the fraction at 53-55℃ (2.67kPa) to obtain the finished product.
The cyclohexene method employs a catalytic hydrogenation route, utilizing cyclohexene, hydrogen sulfide, and the catalyst W2Ni/Al2O3 as raw materials. The synthesis of cyclohexanethiol is directly achieved in a high-pressure reactor under conditions of 200-260℃ and 8-25MPa, after a reaction period of 3-5 hours
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