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447420-69-1

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447420-69-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 447420-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,7,4,2 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 447420-69:
(8*4)+(7*4)+(6*7)+(5*4)+(4*2)+(3*0)+(2*6)+(1*9)=151
151 % 10 = 1
So 447420-69-1 is a valid CAS Registry Number.

447420-69-1Downstream Products

447420-69-1Relevant articles and documents

Convenient preparation of tert-butyl β-(protected amino)esters

Katritzky, Alan R.,Kirichenko, Kostyantyn,Elsayed, Ahamad M.,Ji, Yu,Fang, Yunfeng,Steel, Peter J.

, p. 4957 - 4959 (2007/10/03)

Refluxing an aldehyde 1 with benzotriazole and benzylcarbamate in the presence of a catalytic amount of p-TsOH gave the corresponding benzyloxycarbonylamino-1-(1-benzotriazolyl)alkane 2 in good yields. Compounds 2 treated with substituted tert-butyl acetates 3 using LDA as a base afford smoothly and under mild conditions the N-2-protected 3-aminoalkanoic esters 4.

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