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1291065-78-5

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1291065-78-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1291065-78-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,1,0,6 and 5 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1291065-78:
(9*1)+(8*2)+(7*9)+(6*1)+(5*0)+(4*6)+(3*5)+(2*7)+(1*8)=155
155 % 10 = 5
So 1291065-78-5 is a valid CAS Registry Number.

1291065-78-5Relevant articles and documents

Catalytic Asymmetric Diels-Alder Reaction of Quinone Imine Ketals: A Site-Divergent Approach

Hashimoto, Takuya,Nakatsu, Hiroki,Maruoka, Keiji

supporting information, p. 4617 - 4621 (2015/04/14)

The catalytic asymmetric Diels-Alder reaction of quinone imine ketals with diene carbamates catalyzed by axially chiral dicarboxylic acids is reported herein. A variety of primary and secondary alkyl-substituted quinone derivatives which have not been applied in previous asymmetric quinone Diels-Alder reactions could be employed using this method. More importantly, we succeeded in developing a strategy to divert the reaction site in unsymmetrical 3-alkyl quinone imine ketals from the inherently favored unsubstituted C=C bond to the disfavored alkyl-substituted C=C bond.

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