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Triethylamine → (E)-3-{4-[5-(Cyclopropyl-methyl-amino)-4-methoxy-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl]-cyclohexa-2,4-dienyl}-2-methyl-acrylic acid ethyl ester

HRID 1869926
Notes
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Reaction equation

HRID 1869926 reaction equation
[CH:1]1([N:4]([CH3:21])[CH:5]2[CH2:14][CH2:13][C:12]([CH3:16])([CH3:15])[C:11]3[CH:10]=[C:9]([C:17]#[CH:18])[CH:8]=[C:7]([O:19][CH3:20])[C:6]2=3)[CH2:3][CH2:2]1.Br[C:23]1[CH:24]=[C:25]2[C:30](=[C:31](CNC3CC3)[CH:32]=1)[O:29][C:28](C)(C)[CH2:27][C:26]2(C)C.[CH2:42](N(CC)CC)C.[C:49](OCC)(=[O:51])[CH3:50]>CCCCCC.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH2:49]([O:51][C:28](=[O:29])/[C:27](/[CH3:42])=[CH:26]/[CH:25]1[CH2:24][CH:23]=[C:32]([C:18]#[C:17][C:9]2[CH:8]=[C:7]([O:19][CH3:20])[C:6]3[CH:5]([N:4]([CH:1]4[CH2:3][CH2:2]4)[CH3:21])[CH2:14][CH2:13][C:12]([CH3:15])([CH3:16])[C:11]=3[CH:10]=2)[CH:31]=[CH:30]1)[CH3:50]
ParticipantsProcedureSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 211071945-(Cyclopropyl-methyl-amino)-2-ethynyl-8,8-dimethyl-4-methoxy-5,6,7,8-tetrahydro-naphthalene2×HCID 211072186-Bromo-8-[(cyclopropyl-amino)-methyl]-2,2,4,4-tetramethyl-chroman2×

Product 1

HCID 86600191
(E)-3-{4-[5-(Cyclopropyl-methyl-amino)-4-methoxy-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl]-cyclohexa-2,4-dienyl}-2-methyl-acrylic acid ethyl ester

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8058HexaneSolvent

Procedure

Following General Procedure B and using 5-(cyclopropyl-methyl-amino)-2-ethynyl-8,8-dimethyl-4-methoxy-5,6,7,8-tetrahydro-naphthalene (Intermediate 81 0.08 g, 0.28 mmol), (E)-3-(4-iodo-phenyl)-2-methyl-acrylic acid ethyl ester (Reagent 7, 0.09 g, 0.28 mmol), triethyl amine (8 mL), copper(I)iodide (0.019 g, 0.1 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.07 g, 0.1 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 5-10% ethyl acetate in hexane as the eluent, the title compound was obtained as a white solid (0.12 g, 90%).

Sources & evidence

ORD record
ord-584048c72bd741f8a3ec941b94648611
Source dataset
uspto-grants-2009_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07638648B2

Reaction notes

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