58416-04-9 Usage
Chemical Properties
White powder
Uses
Dimethyl 3,4-dihydroxythiophene-2,5-dicarboxylate is a useful reactant for Curtius-?like rearrangement reactions for the synthesis of 2,?5-?diamide-?substituted five-?membered heterocycles based on the thiophene, pyrrole, and furan ring systems.
Check Digit Verification of cas no
The CAS Registry Mumber 58416-04-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,4,1 and 6 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 58416-04:
(7*5)+(6*8)+(5*4)+(4*1)+(3*6)+(2*0)+(1*4)=129
129 % 10 = 9
So 58416-04-9 is a valid CAS Registry Number.
InChI:InChI=1/C8H8O6S/c1-13-7(11)5-3(9)4(10)6(15-5)8(12)14-2/h9-10H,1-2H3
58416-04-9Relevant articles and documents
2,5-Diamide-Substituted Five-Membered Heterocycles: Challenging Molecular Synthons
Fabbro, Chiara,Armani, Simone,Carloni, Laure-Elie,De Leo, Federica,Wouters, Johan,Bonifazi, Davide
, p. 5487 - 5500 (2014/10/15)
We describe synthetic routes for preparing previously unknown 2,5-diamide-substituted five-membered heterocycles based on the thiophene, pyrrole, and furan ring systems by exploiting Curtius-like rearrangement reactions. Conformation analysis of the 2,5-diamidothiophene derivatives identified a "closed" conformation, in which the two carbonyl O atoms are in close contact with the thiophene S atom.
