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(3R,3aR,5S,6R,7S,7aS)-3-(tert-Butyl-diphenyl-silanyloxy)-6-hydroxy-5-(3-methoxy-benzyloxy)-7-(2-methoxy-ethoxymethoxy)-octahydro-benzo[b]thiophene-6-carbaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

220803-00-9

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220803-00-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220803-00-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,8,0 and 3 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 220803-00:
(8*2)+(7*2)+(6*0)+(5*8)+(4*0)+(3*3)+(2*0)+(1*0)=79
79 % 10 = 9
So 220803-00-9 is a valid CAS Registry Number.

220803-00-9Relevant academic research and scientific papers

Total synthesis of (+)-breynolide

Burke, Steven D.,Letourneau, Jeffrey J.,Matulenko, Mark A.

, p. 9 - 12 (2007/10/03)

The total synthesis of (+)-breynolide (2) is described. The primary focus is the synthesis of the advanced aldehyde intermediate 12, which comprises the cis-fused perhydrobenzothiophene ring system. Three stereoselectiye cyclohexene epoxidation/epoxide opening sequences and a glycolate ester Claisen rearrangement, by which all of the necessary oxygen functionality in 12 is introduced before installation of the thioether, are employed.

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