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287482-35-3

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287482-35-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 287482-35-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,4,8 and 2 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 287482-35:
(8*2)+(7*8)+(6*7)+(5*4)+(4*8)+(3*2)+(2*3)+(1*5)=183
183 % 10 = 3
So 287482-35-3 is a valid CAS Registry Number.

287482-35-3Relevant articles and documents

Catalytic asymmetric dialkynylation reaction of α-dinitrone by utilizing tartaric acid ester as a chiral auxiliary

Serizawa, Masakazu,Fujinami, Shuhei,Ukaji, Yutaka,Inomata, Katsuhiko

, p. 921 - 931 (2008/09/21)

The asymmetric addition of alkynylzinc reagents, prepared in situ from dimethylzinc and 1-alkynes, to α-dinitrones derived from glyoxal and N-(4-isopropylbenzyl)hydroxylamine was investigated by utilizing dicyclohexyl (R,R)-tartrate as a chiral auxiliary. The addition reaction of methyl(2-phenylethynyl)zinc afforded the corresponding optically active C2-symmetric (R,R)-bis(hydroxylamine) derivative with enantioselectivities of 90% and 81% ee by utilizing a stoichiometric and catalytic amount of the tartrate, respectively. Furthermore, the catalytic addition reaction of several alkynylzinc reagents also furnished the corresponding bis(hydroxylamine) with moderate to good enantioselectivities.

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