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187672-34-0

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187672-34-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187672-34-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,6,7 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 187672-34:
(8*1)+(7*8)+(6*7)+(5*6)+(4*7)+(3*2)+(2*3)+(1*4)=180
180 % 10 = 0
So 187672-34-0 is a valid CAS Registry Number.

187672-34-0Upstream product

187672-34-0Relevant articles and documents

An efficient catalytic method for the Beckmann rearrangement of ketoximes to amides and aldoximes to nitriles mediated by propylphosphonic anhydride (T3P)

Augustine, John Kallikat,Kumar, Rajesha,Bombrun, Agnes,Mandal, Ashis Baran

experimental part, p. 1074 - 1077 (2011/03/22)

An efficient method for the Beckmann rearrangement of ketoximes to amides mediated by a catalytic amount (15 mol %) of propylphosphonic anhydride (T3P) is described. Aldoximes underwent second order Beckmann rearrangement to provide the corresponding nitriles in excellent yields on reacting with T3P (15 mol %) at room temperature. The main advantages of this environmentally friendly protocol include procedural simplicity, and particularly ease of isolation of the products.

Efficiency of the Vilsmeier-Haack method in the synthesis of p-aminobenzaldehydes

Gawinecki, Ryszard,Andrzejak, Sylwia,Puchala, Agnieszka

, p. 455 - 460 (2007/10/03)

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