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1423131-78-5

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1423131-78-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1423131-78-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,3,1,3 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1423131-78:
(9*1)+(8*4)+(7*2)+(6*3)+(5*1)+(4*3)+(3*1)+(2*7)+(1*8)=115
115 % 10 = 5
So 1423131-78-5 is a valid CAS Registry Number.

1423131-78-5Downstream Products

1423131-78-5Relevant articles and documents

[3+2] Cycloadditions of α-acyl ketene dithioacetals with propargylamines: Pyrrole synthesis in water

Ren, Chuan-Qing,Di, Chong-Hui,Zhao, Yu-Long,Zhang, Jing-Ping

supporting information, p. 1478 - 1481 (2013/04/23)

A series of 2,3,4-trisubstituted and 1,2,3,4-tetrasubstituted pyrroles were synthesized via [3+2] cycloaddition of α-acyl ketene dithioacetals (or related substrates) with commercially available propargylamines as 1,3-dipoles in water. Most of the reactions can be performed in the absence of an external base. The reaction of secondary amine (N-methylprop-2-yn-1-amine) with α-acyl ketene dithioacetals showed different reaction behaviours depending on the addition or absence of an external base. Copyright

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