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Carbonic acid 1-[3-(benzyl-tert-butoxycarbonyl-amino)-4-methyl-pent-1-ynyl]-octyl ester methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139448-50-3

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139448-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139448-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,4 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139448-50:
(8*1)+(7*3)+(6*9)+(5*4)+(4*4)+(3*8)+(2*5)+(1*0)=153
153 % 10 = 3
So 139448-50-3 is a valid CAS Registry Number.

139448-50-3Relevant academic research and scientific papers

Synthesis of α-vinylidene-β-lactams by the palladium-catalyzed carbonylation of 4-amino-2-alkynyl carbonates

Mandai,Ryoden,Kawada,Tsuji

, p. 7683 - 7686 (2007/10/02)

The palladium-catalyzed carbonylation of 4-amino-2-alkynyl carbonates proceeded under mild conditions to afford α-vinylidene-β-lactams in moderate yields. The cyclic phosphite, 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2,2,2]octane was found to be the best li

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