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440640-37-9

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440640-37-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 440640-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,0,6,4 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 440640-37:
(8*4)+(7*4)+(6*0)+(5*6)+(4*4)+(3*0)+(2*3)+(1*7)=119
119 % 10 = 9
So 440640-37-9 is a valid CAS Registry Number.

440640-37-9Relevant articles and documents

Indium-mediated microwave-assisted one-pot synthesis of α,β-unsaturated amides

Feng, Sunlin,Jiang, Shilei,Zhang, Zhiying,Yu, Xiaochun

experimental part, p. 392 - 394 (2010/11/18)

A stereoselective synthesis of α,β-unsaturated-N,N-diethyl amides was achieved by a one-pot reaction of triphenylphosphine, an aromatic aldehyde, and N,N-diethyl chloroacetamide in the presence of indium under microwave-assisted and solvent-free condition.

Microwave-assisted one-pot synthesis of α, β-unsaturated amides under solvent-free conditions

Jiang, Shilei,Xie, Yuanyuan,Yu, Xiaochun

experimental part, p. 24 - 26 (2009/10/02)

Under microwave-assisted solvent-free conditions a one-pot reaction of triphenylphosphine, an aldehyde and N, N-diethyl chloroacetamide in the presence of zinc dust affords α, β-unsaturated amides stereoselectively in good yield. In comparison with the co

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