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23906-20-9

DIETHYL 2-ACETAMIDO-2-(BENZO(B)THIOPHENE-3-YLMETHYL)MALONATE synthesis

2synthesis methods
3216-47-5 Synthesis
2-CHLORO-3-METHYLBENZO(B)THIOPHENE

3216-47-5
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1068-90-2 Synthesis
Diethyl acetamidomalonate

1068-90-2
566 suppliers
$5.00/25g

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Yield:23906-20-9 80%

Reaction Conditions:

Stage #1: 2-acetylaminomalonic acid diethyl esterwith sodium hydride in N,N-dimethyl-formamide at 20; for 0.5 h;
Stage #2: 3-chloromethylbenzothiophene in N,N-dimethyl-formamide at 20 - 60; for 7 h;Further stages.;

References:

Paizs, Csaba;Katona, Adrian;Retey, Janos [Chemistry - A European Journal,2006,vol. 12,# 10,p. 2739 - 2744]