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1251735-85-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1251735-85-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,1,7,3 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1251735-85:
149 % 10 = 9
So 1251735-85-9 is a valid CAS Registry Number.

1251735-85-9Downstream Products

1251735-85-9Relevant articles and documents

Synthesis of chiral benzoacridinone derivatives by three-component condensation of [(1S,4Sr)-1,7,7-Trimethyl-bicyclo[2.2.1]hept-2-ylidene] acetaldehyde with naphthalen-1-amine and cyclic β-diketones


, p. 1121 - 1134 (2010)

Three-component condensation of [(1S,4S)-1,7,7-trimethylbicyclo[2.2.1]hept- 2-ylidene]acetalde-hyde with naphthalen-1-amine and cyclic β-diketones gave 7-[(1S,4S)-1,7,7-trimethylbicyclo[2.2.1]hept-2-ylidenemethyl]-7,8,9,10,11,12- hexahydro-7/f-benzo[c]acridin-8-one derivatives possessing three or more asymmetric carbon atoms. Steric factors were found to be responsible for the predominant formation of the (7R)-isomers (R/S 7:5) and orientation of substituents in the cyclohexenone fragment. The same factors determined complete regioselectivity of the reaction with methyl 2,4-dioxocyclohexane-1- carboxylates as dicarbonyl component, which led to exclusive formation of methyl 8-oxobenzoacridine-11-carboxylates. In the reaction of [(1S,4S)-1,7,7- trimethylbicyclo[2.2.1]hept-2-ylidene]acetaldehyde with naphthalen-1-amine and barbituric acid as dicarbonyl component, the only product was that formed by two-component condensation of barbituric acid with bicyclic aldehyde. Pleiades Publishing, Ltd., 2010.

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