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(E)-(1R,3aR,7S,8S,10S,12aS)-1-Isopropyl-3a,6,10-trimethyl-8-(toluene-4-sulfonyl)-1,2,3,3a,4,7,8,9,10,11,12,12a-dodecahydro-cyclopentacycloundecen-7-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

155157-75-8

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155157-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155157-75-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,1,5 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 155157-75:
(8*1)+(7*5)+(6*5)+(5*1)+(4*5)+(3*7)+(2*7)+(1*5)=138
138 % 10 = 8
So 155157-75-8 is a valid CAS Registry Number.

155157-75-8Relevant academic research and scientific papers

An efficient synthesis of the dolabellanes

Williams,Coleman,Nevill,Robinson

, p. 7895 - 7898 (1993)

Eleven-membered carbocycles have been prepared by the intramolecular condensations of α-sulfonyl carbanions with α,β-unsaturated aldehydes. Desulfonylation provides an efficient stereocontrolled synthesis of allylic alcohols featuring the [9.3.0] cyclotetradecane skeleton which characterized the dolabellane diterpenes.

Strategies for the synthesis of fusicoccanes by nazarov reactions of dolabelladienones: Total synthesis of (+)-fusicoauritone

Williams, David R.,Robinson, Leslie A.,Nevill, C. Richard,Reddy, Jayachandra P.

, p. 915 - 918 (2008/02/01)

Attaining closure: A synthetic pathway leading to (+)-fusicoauritone (1) is highlighted by the use of a Julia condensation for preparation of an eleven-membered-dolabelladienone precursor for subsequent Nazarov cyclization to yield the 5-8-5 tricyclic dit

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