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1374417-20-5

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1374417-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1374417-20-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,4,4,1 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1374417-20:
(9*1)+(8*3)+(7*7)+(6*4)+(5*4)+(4*1)+(3*7)+(2*2)+(1*0)=155
155 % 10 = 5
So 1374417-20-5 is a valid CAS Registry Number.

1374417-20-5Downstream Products

1374417-20-5Relevant articles and documents

Synthesis of cis-2,6-tetrahydropyran-4-one via diastereoselectively intramolecular cyclization of β-hydroxy allyl ketone

Lee, Adam Shih-Yuan,Lin, Li-Shin,Chang, Yu-Ting

experimental part, p. 3915 - 3919 (2012/07/14)

A series of cis-2,6-tetrahydropyran-4-ones was synthesized from the intramolecular cyclization reaction of β-hydroxy allyl ketones in the presence of Me3SiOTf as catalyst. The β-hydroxy allyl ketone was prepared from allylation reaction with β-hydroxynitrile without protection of hydroxy functionality under the Barbier-type reaction condition.

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