Triethylamine → 3,5-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol

HRID 2216150노트

반응식

HRID 2216150 반응식
Br[C:2]1[C:7]([CH3:8])=[CH:6][C:5]([OH:9])=[CH:4][C:3]=1[CH3:10].[CH3:11][C:12]1([CH3:19])[C:16]([CH3:18])([CH3:17])[O:15][BH:14][O:13]1.CCN(CC)CC>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.O1CCOCC1>[CH3:10][C:3]1[CH:4]=[C:5]([OH:9])[CH:6]=[C:7]([CH3:8])[C:2]=1[B:14]1[O:15][C:16]([CH3:18])([CH3:17])[C:12]([CH3:19])([CH3:11])[O:13]1

참가 물질

6

반응물 3

HCID 8471TriethylamineHCID 819704-Bromo-3,5-dimethylphenolHCID 27347684,4,5,5-Tetramethyl[1,3,2]dioxaborolane

생성물 1

HCID 218863883,5-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol수율 180.3%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 312751,4-Dioxane용매

실험 절차

Following the procedure described in Example 220, step a, reaction of 4-bromo-3,5-dimethyl-phenol (1.5 gm, 7.6 mmol), 4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.3 mL, 23 mmol, Aldrich Chemical Company), PdCl2(PPh3)2 (530 mg, 0.76 mmol, Strem Chemicals Inc, Newburyport, Mass.), Et3N (634 μL, 46 mmol), and dioxane (30 mL) afforded 3.4 gm of a tan glassy solid after chromatography (50 gm, silica SPE column) which was used without further purification. 1H-NMR (CDCl3; 400 MHz): δ 6.4 (s, 2H), 2.3 (s, 6H), 1.4 (s, 12H).

출처 및 근거

ORD 기록
ord-fee9e01cd7a04e1a9555cbd38133e5fb
출처 데이터셋
uspto-grants-2006_09
특허 번호
US07109354B2

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