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63819-86-3

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63819-86-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 63819-86-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,8,1 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 63819-86:
(7*6)+(6*3)+(5*8)+(4*1)+(3*9)+(2*8)+(1*6)=153
153 % 10 = 3
So 63819-86-3 is a valid CAS Registry Number.

63819-86-3Downstream Products

63819-86-3Relevant articles and documents

Doubly Deprotonated Methyl 3-Nitropropanoate, an Acrylic Ester d2-Reagent

Seebach, Dieter,Henning, Rainer,Mukhopadhyay, Triptikumar

, p. 1705 - 1720 (2007/10/02)

Methyl 3-nitropropanoate can be doubly deprotonated with LDA, both in the α-nitro and in the α-carbonyl position (-> 1).It is shown that the necessary cosolvent HMPT can be replaced by the cyclic urea DMPU, with almost equal results.The new reagent 1 is alkylated and hydroxyalkylated by alkyl halides and aldehydes, respectively, at the 2-position exclusively (see 2, 4, 6, 7).A double alkylation to methyl α,α-dialkyl-β-nitropropanoate 5 is possible.Elimination of HNO2 with DBN or even better with DBU in THF furnishes methyl α-methylenealkanoates 9 and methyl β-hydroxy-α-methylenealkanoates 10.

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