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38824-44-1

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38824-44-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 38824-44-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,8,2 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 38824-44:
(7*3)+(6*8)+(5*8)+(4*2)+(3*4)+(2*4)+(1*4)=141
141 % 10 = 1
So 38824-44-1 is a valid CAS Registry Number.

38824-44-1Upstream product

38824-44-1Downstream Products

38824-44-1Relevant articles and documents

Chemistry of aminophenols. Part 1: Remarkable additive effect on Sonogashira cross-coupling of 2-carboxamidoaryl triflates and application to novel synthesis of indoles

Dai, Wei-Min,Guo, Dian-Shun,Sun, Li-Ping

, p. 5275 - 5278 (2007/10/03)

A novel and general synthesis of indoles has been established by utilizing 2-aminophenols as the starting materials. The key step is a modified Pd(0)-Cu(I)-catalyzed cross-coupling of 1-alkynes with 2-carboxamidoaryl triflates in the presence of n-Bu4NI as the additive. The 2-alkynylanilides obtained were subjected to an alkoxide-mediated cyclization to provide a number of indole containing compounds possessing substituents at the C2, C4, C5, and/or C6 position(s) in good overall yields.

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