Isoborneol, 2-methyl

Bornene has been prepared from the reaction of 2-bromo-bornane-3-carboxyIic acid with aqueous sodium bicarbonate,6 by pyrolysis of isoborneol methyl xanthate,7 and by the j8-elimination of hydrogen chloride from bornyl chloride with sodium alkoxides in various solvents.2... 

C11H20O isoborneol methyl ether 5331-32-8 476.22 41.604 2 22802 C11H22 trans-5-undecene 764-97-6 465.15 40.546 1,2... 

In a sample of defective wines, most in the barrel, half of them contained TCA or TeCA at clearly perceptible doses. Wines may also have defects described as earthy , weedy , wild mushrooms , wet cardboard and considerable research has centred on this. Lee and Simpson (1993) analysed them and identifieds compounds such as 2,4-dichloro-6-methylanisol, chlorated cresols, oct-l-en-3-one, oct-l-en-3-ol, d.y-octa-l,5-dien-3-one, d.y-octa-l,5-dien-3-ol, guayacol, 2-methyl-isoborneol and geosmine. Rapp (1992) also detected other substances in the corks such as 6-chlorovainilline, 4-chloro guayacol, 4,5-dichloro guayacol and veratrol. 

Hexanal 2-Ethyl- -(1-hydroxy-methyl-propylimin) E14a/2, 598 (R —CHO + Amin) Hydroxylamin N.N-Dicyclohexyl-EI6a. 184 (O — P-Spalt.) Isoborneol (1 / ,4.5)-3-c j- Dimethyl-amino- E21f, 5864 (NH2 - NR2)... 

Ozone can sometimes solve taste and odor problems when the taste and odor are caused by unsaturated organic compounds. For example, unsaturated aldehydes, which are important taste and odor by-products of Synura species, are readily oxidizable by ozone. Also, ozone is quite effective in removing 2-methyl-isoborneol (MIB), which causes the musty-earthy taste and odor and is rarely removed by conventional water treatment methods, from the natural water. However, if the taste- and odor-causing compounds are saturated, ozone treatment may have little effect. ... 

Actinomycetes, primarily streptomycetes, are capable of producing highly odorous volatile metabolites in low yields in submerged culture. This subject has been reviewed in detail(37). Among the more important volatiles identified ares geosmin, the earthy odor, methyl isoborneol, having a camphor or menthol odor 2-methoxy-3-isopropyl pyrazine, with a musty vegetable odor and miscellaneous compounds such as sesquiterpenoids and lactones. 

H. Firouzabadi and E. Ghaderi, Tetrahedron Letters, 1978, 839 the borneols [a mixture of (+)-borneol and (—)-isoborneol was used] and camphor each lack the C-10 methyl group in this paper. 

The hydride is added to camphor predominately from the less hindered side of the carbonyl group. This is the side opposite the bridge with the two methyl groups and results in the formation of more isoborneol than borneol. 

Adipic acid Butyl alcohol N-Hydroxysuccinic acid Isoborneol Isostearic acid PEG-6 acrylate PEG-9 acrylate Perchloric acid Succinic anhydride Xylene sulfonic acid ester mfg., flavoring n-Butyric acid ester mfg., flavoring agents Isobutyric acid Phenylacetyl chloride ester mfg., fragrances n-Butyric acid ester mfg., perfume bases Isobutyric acid ester mfg., plasticizers PPG-2 methyl ether ester mfg., solvents Isobutyric acid ester modifier Dimethyloctanyl acetate ester oil mfg., complex Isooctanoic acid ester synthesis Isocetyl alcohol... 

Kikuchi, T., T. Mimura, Y. Itoh, Y. Moriwaki, Y. Negoro, K. Masada, and T. Indue Odorous Metabolites of Actinomyces Biwako-C and -D Strain Isolated from the Bottom Deposits of Lake Biwa. Identification of Geosmin, 2-Methyl-isoborneol and Furfural. Chem. Pharm. Bull. (Japan) 21, 2339 (1973) Chem. Abstr. 80, 117 937d (1974). 

Geosmin, 2-isopropyl, 3-methyox pyrazine, 2-iso-butyl-3-methoxy-pyrazine, 2-methyl isoborneol, 2,3, 6 trichloroanisole 0.8pg L- [160]... 

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