Binap, (A+-)- → benzyl (1S,5S)-6-(5,6-dichloro-3-pyridinyl)-3,6-diazabicyclo[3.2.0]heptane-3-carboxylate

HRID 393817

Reaction equation

HRID 393817 reaction equation
[C@@H:1]12[CH2:7][NH:6][C@@H:5]1[CH2:4][N:3]([C:8]([O:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:9])[CH2:2]2.[Cl:18][C:19]1[C:24]([Cl:25])=[CH:23][C:22](I)=[CH:21][N:20]=1.C1(P(C2C=CC=CC=2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CC(C)([O-])C.[Na+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Cl:25][C:24]1[CH:23]=[C:22]([N:6]2[CH2:7][C@@H:1]3[C@H:5]2[CH2:4][N:3]([C:8]([O:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[O:9])[CH2:2]3)[CH:21]=[N:20][C:19]=1[Cl:18]

Participants

6

Reactant 4

HCID 634876Binap, (A+-)-HCID 218928742,3-Dichloro-5-iodopyridineHCID 23635906benzyl (1S,5S)-3,6-diazabicyclo[3.2.0]heptane-3-carboxylateHCID 23676156Sodium t-butoxide

Product 1

HCID 23636393benzyl (1S,5S)-6-(5,6-dichloro-3-pyridinyl)-3,6-diazabicyclo[3.2.0]heptane-3-carboxylateYield 25%

Reagents, catalysts & solvents 1

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalyst

Procedure

The product of Example 52D (451 mg, 1.94 mmol) was coupled with 2,3-dichloro-5-iodopyridine (805 mg, 2.94 mmol; U.S. Pat. No. 7,733,912) using tris(dibenzylideneacetone)dipalladium (Pd2(dba)3, 36 mg, 0.039 mmol; Alfa Aesar), 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (BINAP, 82 mg, 0.13 mmol; Strem), and sodium tert-butoxide (360 mg, 3.75 mmol; Aldrich) according to the procedure described in Example 1E to provide the title compound (184 mg, 25% yield). MS (DCI/NH3) m/z 378, 380 (M+H)+.

Sources & evidence

ORD record
ord-de44466960434d609637616073c4b386
Source dataset
uspto-grants-2004_10
Patent number
US06809105B2

Linked notes

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