Triethylamine → HCID 178472684, compound

HRID 2404104Notes

Reaction equation

HRID 2404104 reaction equation
[C:1]([CH:5]1[CH2:10][CH2:9][CH:8]([O:11][C:12]2[CH:13]=[C:14]3[C:19](=[CH:20][CH:21]=2)[CH:18]=[C:17]([CH:22]=O)[CH:16]=[CH:15]3)[CH2:7][CH2:6]1)([CH3:4])([CH3:3])[CH3:2].Cl.[CH2:25]([O:27][C:28](=[O:31])[CH2:29][NH2:30])[CH3:26].C(N(CC)CC)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl.ClCCl>[CH2:25]([O:27][C:28](=[O:31])[CH2:29][NH:30][CH2:22][C:17]1[CH:16]=[CH:15][C:14]2[C:19](=[CH:20][CH:21]=[C:12]([O:11][C@H:8]3[CH2:9][CH2:10][C@H:5]([C:1]([CH3:4])([CH3:3])[CH3:2])[CH2:6][CH2:7]3)[CH:13]=2)[CH:18]=1)[CH3:26]

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 2723640Glycine ethyl ester, hydrochlorideHCID 5049666Sodium triacetoxyborohydrideHCID 866684126-(trans-4-Tert-butylcyclohexyloxy)-2-naphthaldehyde

Product 1

HCID 178472684HCID 178472684, compoundYield 55.5%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 6344DichloromethaneSolvent

Procedure

A solution of 6-(4-tert-butyl-cyclohexyloxy)-naphthalene-2-carbaldehyde (90 mg, 0.29 mmol), glycine ethyl ester hydrochloride (162 mg, 1.16 mmol), and triethylamine (0.16 mL, 1.16 mmol) in 1,2-dichloroethane (2 mL) was treated with sodium triacetoxyborohydride (129 mg, 0.58 mmol). The mixture was stirred at room temperature overnight. The solution was diluted with dichloromethane and washed with aqueous sodium bicarbonate. The organic phase was dried over MgSO4 and concentrated. The residue was purified with a silica gel column eluted with ethyl acetate in hexane from 0 to 100% to give product (64 mg, yield: 55%). ESI-MS: 420.30 (M+23)+; 1H NMR (400 MHz, CDCl3) δ=7.66-7.70 (m, 3H), 7.41 (dd, 1H), 7.11-7.14 (m, 2H), 4.26 (m, 1H), 4.19 (q, 2H), 3.93 (s, 2H), 3.43 (s, 2H), 2.28 (d, 4H), 1.89 (d, 2H), 1.44 (q, 2H), 1.27 (t, 3H), 1.09-1.20 (m, 3H), 0.89 (s, 9H).

Workup

  1. washwashed with aqueous sodium bicarbonate
  2. dry with materialThe organic phase was dried over MgSO4
  3. concentrationconcentrated
  4. customThe residue was purified with a silica gel column
  5. washeluted with ethyl acetate in hexane from 0 to 100%

Sources & evidence

ORD record
ord-f6b6124d9c4544a7af39e63021f5a1dd
Source dataset
uspto-grants-2014_08
Patent number
US08802659B2

Reaction notes

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