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1615691-63-8

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1615691-63-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1615691-63-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,5,6,9 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1615691-63:
(9*1)+(8*6)+(7*1)+(6*5)+(5*6)+(4*9)+(3*1)+(2*6)+(1*3)=178
178 % 10 = 8
So 1615691-63-8 is a valid CAS Registry Number.

1615691-63-8Downstream Products

1615691-63-8Relevant articles and documents

One-pot asymmetric synthesis of substituted tetrahydrofurans via a multicatalytic benzoin/Michael/acetalization cascade

He, Gu,Wu, Fengbo,Huang, Wei,Zhou, Rui,Ouyang, Liang,Han, Bo

, p. 2311 - 2319 (2014/07/21)

A sequential benzoin/Michael/acetalization tandem reaction catalyzed by NHC and amine together has been developed to assemble aromatic aldehydes and enals into chiral tetrahydrofuran derivatives bearing multiple functional groups and stereogenic centers with high stereoselectivity of up to 95:5 dr and 96% ee. The high yield and stereocontrol of this process may be due to both acid-promoted symmetrization of racemic acyloins and iminium ion activation of enals.

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