Tryptamine → Diisopropylethylamine

HRID 1275041Notes

Reaction equation

HRID 1275041 reaction equation
NCC[C:4]1[C:12]2[C:7](=[CH:8]C=CC=2)[NH:6][CH:5]=1.C(Cl)Cl.C(Cl)(Cl)Cl.O1[CH2:24][CH2:23][CH2:22]C1>N1C=CC=CC=1.C(N(CC)CC)C.C(OCC)C>[CH:23]([N:6]([CH:7]([CH3:12])[CH3:8])[CH2:5][CH3:4])([CH3:24])[CH3:22]

Participants

8

Procedure

As shown in reaction Scheme B, the 2-aryltryptamine may be condensed with a carboxylic acid of type (6) using the coupling reagent 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC), 1,3-dicyclohexylcarbodiimide (DCC) or the like with or without 1-hydroxybenzotriazole (HOBt) and a tertiary amine base such as N-methylmorpholine (NMM), triethylamine or the like in an inert organic solvent such as methylene chloride, chloroform, dimethylformamide, or mixtures thereof at or near room temperature for a period of 3-24 hours to provide the corresponding amide derivative (7). Alternatively, 2-aryltryptamine (5) can be treated with an active ester or acid chloride of type (8) in an inert organic solvent such as methylene chloride, chloroform, tetrahydrofuran, diethyl ether, or the like and a tertiary amine base such as triethylamine, diisopropylethylamine, pyridine or the like at a temperature of 0°-25° C. for 30 minutes to 4 hours to give (7). ##STR9##

Sources & evidence

ORD record
ord-e73408351d684fc1ab94392eeed790d0
Source dataset
uspto-grants-2000_12
Patent number
US06159975

Reaction notes

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