5-formyl-4-methylthiophene-2-carboxylic acid synthesis

2synthesis methods

Product Name:5-formyl-4-methylthiophene-2-carboxylic acid
CAS Number:391936-74-6
Molecular formula:C7H6O3S
Molecular Weight:170.19

5834-16-2
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5-formyl-4-methylthiophene-2-carboxylic acid

391936-74-6
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Yield:-

Steps:

Multi-step reaction with 3 steps
1.1: 87 percent / 24 h / Heating
2.1: n-BuLi; TMEDA / hexane; tetrahydrofuran / 2 h / -78 °C
2.2: hexane; tetrahydrofuran; diethyl ether / 16 h / 20 °C
3.1: 8.3 g / aq. H₂SO₄

References:

Costantino, Gabriele;Marinozzi, Maura;Camaioni, Emidio;Natalini, Benedetto;Sarichelou, Iran;Micheli, Fabrizio;Cavanni, Paolo;Faedo, Stefania;Noe, Christian;Moroni, Flavio;Pellicciari, Roberto [Il Farmaco,2004,vol. 59,# 2,p. 93 - 99]

Imidazolidine, 1,3-dimethyl-2-(3-methyl-2-thienyl)-

391936-73-5
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391936-74-6
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References