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Benzene, 1-(2,2-dimethyl-1-methylenepentyl)-4-methyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138100-45-5

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138100-45-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138100-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,1,0 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138100-45:
(8*1)+(7*3)+(6*8)+(5*1)+(4*0)+(3*0)+(2*4)+(1*5)=95
95 % 10 = 5
So 138100-45-5 is a valid CAS Registry Number.

138100-45-5Downstream Products

138100-45-5Relevant academic research and scientific papers

Construction of a Sterically Congested Carbon Framework via 5-Hexenyllithium Cyclization. Synthesis of (+/-)-Cuparene.

Bailey, William F.,Khanolkar, Atmaram D.

, p. 7727 - 7738 (2007/10/02)

The naturally occuring sesquiterpene (+/-)-cuparene , which contains two contiguous quaternary centers, is produced in good yield by 5-exo-trig cyclization of the 5-hexenyllithium (2) generated from 6-iodo-3,3-dimethyl-2-(4-methylphenyl)-1-hexene (3) by low temperature lithium-iodine exchange.In contrast, radical mediated cyclization of 3 proceeds via the 6-endo-trig mode to give 1,1-dimethyl-2-(4-methylphenyl)cyclohexane.

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