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1402078-61-8

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1402078-61-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1402078-61-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,0,7 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1402078-61:
(9*1)+(8*4)+(7*0)+(6*2)+(5*0)+(4*7)+(3*8)+(2*6)+(1*1)=118
118 % 10 = 8
So 1402078-61-8 is a valid CAS Registry Number.

1402078-61-8Downstream Products

1402078-61-8Relevant articles and documents

Highly enantioselective organocatalytic formation of functionalized cyclopentane derivatives via tandem conjugate addition/α-alkylation of enals

Remes, Marek,Vesely, Jan

, p. 3747 - 3752 (2012/10/08)

An enantioselective tandem reaction between dialkyl 2-haloethylmalonates and aromatic enals catalyzed by secondary amine catalysts is described. The reaction proceeds through a Michael/α-alkylation reaction sequence to afford the final 1,1,2,3-tetrasubstituted cyclopentanes in good yields (up to 75%) with high diastereoselectivity and enantioselectivity (up to 20:1dr and 93%ee). Moreover, the Michael/α-alkylation reaction also proceeds with a low catalyst loading (5 mol-%) with only a slight influence on selectivity and O- and N-alkylation products were not observed. Chiral 1,1,2,3-tetrasubstituted cyclopentanes were easily synthesized under mild and simple conditions from α,β-unsaturated aldehydes and dialkyl 2-haloethylmalonates in good yields with high diastereoselectivities and enantioselectivities. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

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