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127311-30-2

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127311-30-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127311-30-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,3,1 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127311-30:
(8*1)+(7*2)+(6*7)+(5*3)+(4*1)+(3*1)+(2*3)+(1*0)=92
92 % 10 = 2
So 127311-30-2 is a valid CAS Registry Number.

127311-30-2Downstream Products

127311-30-2Relevant articles and documents

Formal Cycloaddition of Benzylic Cations with Alkenes

Angle, Steven R.,Arnaiz, Damian O.

, p. 5937 - 5947 (2007/10/02)

The reaction of benzylic cations with styrenes affords dihydro(1H)indenes in good yield via a formal atom cycloadditon.The cations were generated from quinone methides and benzylic alcohols. (E)-Styrenes participate in the reaction with remarkable stereoselectivity affording dihydro(1H)indenes with three stereogenic centers with >40:1 diastereoselectivity.A possible transition state for the reaction is discussed.Less activated alkenes such as dihydropyran and methylcyclohexane afforded cycloadducts in 66percent and 51percent yields, respectively.

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