China Suppliers > Tianjin Yuansu Chemical Reagent Co., LTD > 3-Methyl-2-buten-1-ol
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- Details for 3-Methyl-2-buten-1-ol
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3-Methyl-2-buten-1-ol 556-82-1
Category : Organic chemicals and Derivatives/Aroma compounds
CAS NO : 556-82-1 EC NO : 209-141-4 MF : C5H10O MW : 86.1323 Specification : 99% min Packing : 25kg，50kg 200kg Product description : What is the chemical of 3-Methyl-2-buten-1-ol ? Appearance: Colorless transparent liquid with a fruity 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 ; ============================================================================ Mainly used as an organic synthesis intermediate in multiple industrial fields: Pesticide synthesis: It is a key raw material for the production of pyrethroid insecticides (such as pyrethroids and pyrethroids), used for the synthesis of intermediates such as methyl benzoate and dichloropyrethroid acid. Pharmaceuticals and Fine Chemicals: Used as raw material intermediates for the synthesis of drugs such as vitamin A and vitamin E, as well as fragrances such as citral. Industrial applications: Used as solvents or additives in industries such as coatings, dyes, inks, adhesives, etc., and can also be used to produce chemical products such as polycarboxylate superplasticizer (TPEG). ============================================================================== The production methods mainly include two routes: Isobutene formaldehyde method: using 95% paraformaldehyde as raw material, disodium hydrogen phosphate as catalyst, adding tert butanol, replacing air with nitrogen, and then introducing isobutene. The reaction is carried out at 200 ° C for 4 hours, cooled, and distilled to obtain the product with a yield of about 85%. Isoprene Hydrochlorination Method: Isoprene reacts with hydrogen chloride to form 1-chloro-3-methylbutene-2, which reacts with sodium acetate aqueous solution at 100-110 ° C for 3-4 hours to obtain isopentenyl alcohol acetate through layering; Heat and reflux with 30% sodium hydroxide solution for 3 hours, then separate the layers and distill to collect the 52-58 ° C/2.7 × 10 ³ Pa fraction, with a yield of about 80% Uses : a key raw material for the production of pyrethroid insecticides Synonyms : Prenyl alcohol;3,3-Dimethylallyl alcohol;Prenol;Isopentenyl Alcohol;3-methylbut-2-en-1-ol;Isoamylene 3-methyl-2-buten-1-ol; Molecular Structure : 
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3-Methyl-2-buten-1-ol