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ChemicalBook CAS DataBase List TERT-BUTYL 4-(1H-INDOL-3-YL)-3,6-DIHYDROPYRIDINE-1(2H)-CARBOXYLATE
155302-27-5

TERT-BUTYL 4-(1H-INDOL-3-YL)-3,6-DIHYDROPYRIDINE-1(2H)-CARBOXYLATE synthesis

3synthesis methods
79099-07-3 Synthesis
N-(tert-Butoxycarbonyl)-4-piperidone

79099-07-3
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$5.00/5g

-

Yield:155302-27-5 86.2%

Reaction Conditions:

with potassium hydroxide in methanol at 70; for 8 h;

Steps:

1.1 Step 1) Synthesis of tert-butyl 4- (1H-indol-3-yl) -5,6-dihydropyridine-1 (2H) -carboxylate

A solution of indole (5.0 g, 42.7 mmol) and tert-butyl 4-oxopiperidine-1-carboxylate (10.1 g, 51.2 mmol) was added tomethanol (50 mL) followed by KOH (4.78 g, 85.4 mmol) The reaction wasquenched byaddition ofwater (150 mL) toremove alarge amount of yellow solid, filtered and the residue was dried in vacuo to give the title compound as a tan solid

References:

CN106045966,2016,A Location in patent:Paragraph 0201; 0203; 0204; 0205; 0206

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