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| ALPHA,P-DIMETHYLSTYRENE Basic information |
| ALPHA,P-DIMETHYLSTYRENE Chemical Properties |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36-37/39 | | WGK Germany | 2 | | TSCA | Yes | | HS Code | 29029090 |
| ALPHA,P-DIMETHYLSTYRENE Usage And Synthesis |
| Chemical Properties | Clear colorless to light yellow liquid | | Chemical Properties | p,α-Dimethyl styrene has a citrusy-lemon-like aroma. | | Occurrence | Reported found in pepper, coffee, anise and parsley | | Preparation | By passing a stream of p-cymene and water vapors over activated aluminum oxide at 730°C. | | Taste threshold values | Taste characteristics at 2.5 ppm: spicy, balsamic, musty, and eugenol/guiacol-like with a nutty nuance. | | Synthesis Reference(s) | Journal of the American Chemical Society, 118, p. 3970, 1996 DOI: 10.1021/ja9600486The Journal of Organic Chemistry, 44, p. 3157, 1979 DOI: 10.1021/jo01332a014Synthetic Communications, 19, p. 3353, 1989 DOI: 10.1080/00397918908052740 | | General Description | p,α-Dimethylstyrene has been identified as one of the volatile flavor constituents in litchi, essential oils of distilled Mexican lime and parsley. |
| ALPHA,P-DIMETHYLSTYRENE Preparation Products And Raw materials |
| Raw materials | 1,1'-(1,1,2,2-Tetramethyl-1,2-ethanediyl)bis(4-methylbenzene)-->1,3-Cyclohexadiene-1-carboxaldehyde, 4,6,6-trimethyl--->4-ISOPROPYLBENZONITRILE-->2-(4-Methylphenyl)propan-2-ol-->ISOPROPENYLMAGNESIUM BROMIDE-->Isopropenyl acetate-->(+)-Dipentene-->p-menthatriene,p-mentha-1,3,8-triene-->2,2,6-trimethyl-1-oxaspiro[2.5]oct-5-ene-->Benzene, 1-(1-chloro-1-methylethyl)-4-methyl--->4-ISOPROPYLBENZYL CHLORIDE-->p-Cymene |
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