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(1S,2S,4R,8S)-1,2,8,9-tetrabromo-p-menthane is a complex organic compound characterized by its unique stereochemistry and bromine substitution. It is a chiral molecule, meaning it has a non-superimposable mirror image, and it is a derivative of p-menthane, a bicyclic hydrocarbon. The compound has four bromine atoms attached to the carbon skeleton, with the bromine atoms positioned at the 1, 2, 8, and 9 carbons. The stereochemistry is specified by the R and S configurations at the 4th and 8th carbons, respectively, indicating the spatial arrangement of the bromine atoms and the hydrogen atoms attached to these carbons. (1S,2S,4R,8S)-1,2,8,9-tetrabromo-p-menthane is of interest in organic chemistry due to its potential applications in the synthesis of other complex molecules and its unique physical and chemical properties.

33758-94-0

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33758-94-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33758-94-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,7,5 and 8 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33758-94:
(7*3)+(6*3)+(5*7)+(4*5)+(3*8)+(2*9)+(1*4)=140
140 % 10 = 0
So 33758-94-0 is a valid CAS Registry Number.

33758-94-0Relevant academic research and scientific papers

Halogenated Terpenoids. XXII. Uroterpenol. The C8 Stereochemistry

Carman, Raymond M.,Greenfield, Kay L.,Robinson, Ward T.

, p. 21 - 30 (2007/10/02)

The two diastereoisomeric p-menth-1-ene-8,9-diols (uroterpenols) have been separated and crystallized.A crystallographic analysis of a dibromo derivative enables relative and absolute configurations to be assigned throughout the series.

Selective Bromination of Polyenes by 2,4,4,6-tetrabromocyclohexa-2,5-dienone

Kato, Tadahiro,Ichinose, Isao

, p. 1051 - 1056 (2007/10/02)

2,4,4,6-Tetrabromocyclohexa-2,5-dienone (TBCO) liberates bromonium ion when treated with polyenes to form brominated products.The results of the reaction of TBCO with simple olefins are presented.The analogous bromo-ketones, 4-bromo-2,4,6-trichloro- and 2,4,6-tribromo-4-methyl-cyclohexa-2,5-dienone, (4) and (5) respectively, afford the same products (3a), (6), and (7) when treated with geranyl cyanide (1; R = CN).The evidence suggests that formation of the dibromide (3a) may be due to sequential reactions.TBCO in the presence of cetyltrimethylammonium bromide serves as an excellent reagent for selective bromination of polyenes under very mild conditions.

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