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4-Pentenoic acid, 5-(4-nitrophenyl)-, methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

61890-71-9

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61890-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 61890-71-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,8,9 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 61890-71:
(7*6)+(6*1)+(5*8)+(4*9)+(3*0)+(2*7)+(1*1)=139
139 % 10 = 9
So 61890-71-9 is a valid CAS Registry Number.

61890-71-9Downstream Products

61890-71-9Relevant academic research and scientific papers

Chemo-, regio- and stereoselective heck arylation of allylated malonates: Mechanistic insights by ESI-MS and synthetic application toward 5-arylmethyl-γ-lactones

Oliveira, Caio C.,Marques, Marcelo V.,Godoi, Marla N.,Regiani, Thas,Santos, Vanessa G.,Santos, Emerson A.F. Dos,Eberlin, Marcos N.,S, Marcus M.,Correia, Carlos R.D.

, p. 5180 - 5183 (2014)

We describe herein a general method for the controlled Heck arylation of allylated malonates. Both electron-rich and electron-poor aryldiazonium salts were readily employed as the aryl-transfer agents in good yields and in high chemo-, regio-, and stereoselectivity without formation of decarboxylated byproducts. Reaction monitoring via ESI-MS was used to support the formation of chelated Pd species through the catalytic cycle. Additionally, some Heck adducts were successfully used in the total synthesis of pharmacologically active γ-lactones.

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