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149221-33-0

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149221-33-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149221-33-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,2,2 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 149221-33:
(8*1)+(7*4)+(6*9)+(5*2)+(4*2)+(3*1)+(2*3)+(1*3)=120
120 % 10 = 0
So 149221-33-0 is a valid CAS Registry Number.

149221-33-0Downstream Products

149221-33-0Relevant articles and documents

Vanadium(IV) acetylacetonate catalyzed stereoselective synthesis of β-enaminoesters and β-enaminones

Laskar, Rajibul A.,Begum, Naznin A.,Hedayetullah Mir, Mohammad,Ali, Shahzad,Khan, Abu T.

, p. 436 - 440 (2013/02/23)

An efficient and stereoselective procedure has been described for the synthesis of a series of β-enaminoesters and β-enaminones by vanadium(IV) acetylacetonate [VO(acac)2] catalyzed reaction of β-ketoesters and 1,3-diketones with both aliphatic and aromatic amines. X-ray crystallographic studies of some representative compounds corroborate two types of structural geometry formed by inter-molecular as well as intra-molecular hydrogen bonds.

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