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1352448-54-4

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1352448-54-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1352448-54-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,2,4,4 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1352448-54:
(9*1)+(8*3)+(7*5)+(6*2)+(5*4)+(4*4)+(3*8)+(2*5)+(1*4)=154
154 % 10 = 4
So 1352448-54-4 is a valid CAS Registry Number.

1352448-54-4Relevant articles and documents

Reductive Amination/Cyclization of Keto Acids Using a Hydrosilane for Selective Production of Lactams versus Cyclic Amines by Switching of the Indium Catalyst

Ogiwara, Yohei,Uchiyama, Takuya,Sakai, Norio

supporting information, p. 1864 - 1867 (2016/02/03)

Described herein is that the catalytic construction of N-substituted five- and six-membered lactams from keto acids with primary amines by reductive amination, using an indium/silane combination. This relatively benign and safe catalyst/reductant system tolerates the use of a variety of functional groups, especially ones that are reduction-sensitive. A direct switch from synthesizing lactams to synthesizing cyclic amines is achieved by changing the catalyst from In(OAc)3 to InI3. This conversion occurs by further reduction of the lactam using the indium/silane pair.

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