METHYL 5'-AMINO-2,3'-BITHIOPHENE-4'-CARBOXYLATE synthesis
- Product Name:METHYL 5'-AMINO-2,3'-BITHIOPHENE-4'-CARBOXYLATE
- CAS Number:444907-56-6
- Molecular formula:C10H9NO2S2
- Molecular Weight:239.31
67-56-1
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276670-60-1
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444907-56-6
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Yield:444907-56-6 46%
Reaction Conditions:
sulfuric acidProduct distribution / selectivity;Heating / reflux;
Steps:
10.1
Intermediate (10) : Preparation of l-benzvM-chloro-S-thiophen-l-yl-thienori.S-dlpyrimidine; Step 1. Preparation of 5'-amino-[2.3'lbithiophenyl-4'-carboxylic acid methyl ester; The compound (lOOmg, 0.48mmol) prepared in the step 2 of example 8(method 2) was refluxed in catalyst amount of cone, sulfuric acid and methanol (5ml) to give21mg (yield: 46%, colorless solid) of the target compound. [520] 1U NMR(400D, CDCI); δ 7.25(d, J=3.6Hz, IH), 7.01 (m, 2H), 6.22(s, IH), 6.1 l(s,2H), 3.67(s, 3H).
References:
WO2007/102679,2007,A1 Location in patent:Page/Page column 49-50
139302-64-0
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444907-56-6
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88-15-3
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444907-56-6
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$60.00/100mg
![2-[1-(2-THIENYL)ETHYLIDENE]MALONONITRILE](/CAS/GIF/10432-44-7.gif)
10432-44-7
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444907-56-6
19 suppliers
$60.00/100mg