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(1R,4R,5R)-5-((R)-Toluene-4-sulfinyl)-7-oxa-bicyclo[2.2.1]hept-2-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

134297-23-7

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134297-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134297-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,9 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 134297-23:
(8*1)+(7*3)+(6*4)+(5*2)+(4*9)+(3*7)+(2*2)+(1*3)=127
127 % 10 = 7
So 134297-23-7 is a valid CAS Registry Number.

134297-23-7Relevant academic research and scientific papers

Highly diastereoselective Diels-Alder reactions with (R)-ethoxy p-tolyl vinyl sulfonium tetrafluoroborate

Ronan, B.,Kagan, H. B.

, p. 75 - 90 (2007/10/02)

p-Tolyl vinyl sulfoxide has been efficiently activated for the Diles-Alder reactions by transformation into a sulfonium salt 3a or by addition of TMSOTf.Very high diastereomeric excesses have been achieved (>98percent) at -20 deg C in many cases.Best results have been obtained with cyclopentadiene, furan and 2,3-dimethyl-1,3-butadiene.In this way enantiomerically pure oxanorbornenone 19a has been prepared.The reaction mechanism is briefly discussed.

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