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llms.txt · MCPガイドプライバシーポリシー · 利用規約 · サポートv1.8.0
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2-Amino-4-methylthiazole → 6-[(4-Methyl-1,3-thiazol-2-yl)amino]pyridine-2-carboxylic acid

HRID 697
ノート
印刷プレビュー

反応式

HRID 697 の反応式
Cc1csc(N)n1.O=C(O)c1cccc(Br)n1>CC(C)(C)[O-].CC(C)c1cc(C(C)C)c(-c2ccccc2P(C2CCCCC2)C2CCCCC2)c(C(C)C)c1.Cc1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.O=C(/C=C/c1ccccc1)/C=C/c1ccccc1.[Na+].[Pd].[Pd]>Cc1csc(Nc2cccc(C(=O)O)n2)n1
参加物反応条件実験手順出典と根拠反応ノート

参加物

7

反応物 2

HCID 741432-Amino-4-methylthiazoleHCID 5939196-Bromopyridine-2-carboxylic acid

生成物 1

HCID 622553586-[(4-Methyl-1,3-thiazol-2-yl)amino]pyridine-2-carboxylic acid収率 0%

試薬・触媒・溶媒 4

HCID 23676156Sodium t-butoxide試薬HCID 9811564Bis(dibenzylideneacetone)palladium触媒
HCID 11155794
2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenyl
触媒
HCID 1140Toluene溶媒

反応条件

温度
110 °C

実験手順

_The aim of this reaction is to synthesize material to check some ideas for route development and see if 'normal' Buchwald conditions is applicable here. IPC.s were taken and the reaction was monitored either by LCMS or HNMR (a crude sample dissolved in DMSO)._ 19/11-2015 14:00 A dried 250 mL rb-flask under nitrogen atmosphere was charged with 4-methylthiazol-2-amine (C0033995, BT250061) (6.61 g, 57.92 mmol), 6-bromopicolinic acid (C0013377, BT249846) (11.7 g, 57.92 mmol), TRIS(DIBENZYLIDENEACETONE)DIPALLADIUM(0) (C0007769, BT234652) (1.326 g, 1.45 mmol), dicyclohexyl(2',4',6'-triisopropyl-[1,1'-biphenyl]-2-yl)phosphane (C0018897, BT153355) (2.76 g, 5.79 mmol), SODIUM T-BUTOXIDE (C0006296, BT235115) (16.70 g, 173.76 mmol), Toluene (193 ml) was added and the suspension was heated and stirred at reflux (110 °C). Start heating 14:30 - IPC was taken after 18 h **IPC1 LCMS** , seems difficult to identify if any of the desired product was formed. Made an aqueous wash between citric acid/water and ethyl acetate, tedious separation, analysed the two phases IPC2 LCMS but still impossible to identify any product neither in the organic phase IPC3 LCMS. **No evidence of product formation.** The phases were discarded and the reaction judged as failed

出典と根拠

ORDレコード
ord-72695457b0814d8bbec66d3f30d9e87c
出典データセット
750 AstraZeneca ELN dataset
元リンク
出典を表示

反応ノート

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このページの内容参加物反応条件実験手順出典と根拠反応ノート