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6-(tert-butyl-dimethyl-silanyloxy)-3a-trimethylsilanyloxy-3a,6,7,7a-tetrahydro-3H-benzofuran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

433218-90-7

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433218-90-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 433218-90-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,3,2,1 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 433218-90:
(8*4)+(7*3)+(6*3)+(5*2)+(4*1)+(3*8)+(2*9)+(1*0)=127
127 % 10 = 7
So 433218-90-7 is a valid CAS Registry Number.

433218-90-7Upstream product

433218-90-7Downstream Products

433218-90-7Relevant academic research and scientific papers

A synthesis of cyclohexanoid butenolides isolated from Sinomenium acutum

Honzumi, Masatoshi,Ogasawara, Kunio

, p. 1047 - 1049 (2002)

Starting from an enantiopure building-block serving as the chiral equivalent of 4-hydroxycyclohexa-2,5-dien-1-one, a diastereocontrolled synthesis of four cyclohexanoid butenolides has been investigated. The inherent convex-face selectivity exerted by the chiral building block was a key aspect of this method which afforded three of the five known butenolides, with only one losing its original chiral integrity during the conversion.

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