홈MCP워크벤치Skills
홈워크벤치알림마이페이지
llms.txt · MCP 가이드개인정보처리방침 · 이용약관 · 지원v1.8.0
  1. 홈
  2. /반응

Diethyl Ether → (5-Bromo-2-methoxy-phenyl)-napthalen-1-yl-methanol

HRID 25838
노트
인쇄 미리보기

반응식

HRID 25838 반응식
[Br:1][C:2]1[C:11]2[C:6](=CC=CC=2)[CH:5]=[CH:4][CH:3]=1.[CH2:12]([Li])[CH2:13][CH2:14][CH3:15].Br[C:18]1(OC)[CH:25]=[CH:24][C:21]([CH:22]=[O:23])=[CH:20][CH2:19]1.C[CH2:29][O:30]CC>C1COCC1.C(Cl)Cl>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:30][CH3:29])=[C:6]([CH:22]([C:21]2[C:20]3[C:19](=[CH:12][CH:13]=[CH:14][CH:15]=3)[CH:18]=[CH:25][CH:24]=2)[OH:23])[CH:11]=1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 4

HCID 3283Diethyl EtherHCID 70011-BromonaphthaleneHCID 865871414-Bromo-anisaldehydeHCID 178418339Butyllithium

생성물 1

HCID 22565251(5-Bromo-2-methoxy-phenyl)-napthalen-1-yl-methanol수율 88.15%

시약·촉매·용매 2

HCID 6344Dichloromethane용매
HCID 8028Tetrahydrofuran용매2회

반응 조건

온도
-78 °C

실험 절차

To a solution of 1.70 ml (12.22 mmol) 1-Bromonaphthalene (61) in 40 ml dry THF 7.64 ml (12.22 mmol, 1.00 eq.) of a 1.6 M solution of n-Butyllithium in hexanes were added at −78° C. via syringe. After stirring this mixture for 1 h at −78° C. a solution of 2.63 g (12.23 mmol, 1.00 eq.) 4-bromo-anisaldehyde (60) in 30 ml dry THF was added dropwise via a dropping funnel. The resulting mixture was stirred for another 60 min at −78° C., then for 2 h at −30° C. and finally 15 h at r.t. After quenching the reaction with 1 M aq. HCl-solution and adding ether the org. phase was washed subsequently with water and brine before it was dried over MgSO4 and evaporated. Column chromatography (CH2Cl2) yielded 3.70 g (10.77 mmol, 88.15%) (5-Bromo-2-methoxy-phenyl)-napthalen-1-yl-methanol (62) as pale greenish foam. Rf (CH2Cl2)=0.37. 1H-NMR (500 MHz, CDCl3): δ=3.84 (s, 3H, OMe), 6.80 (d, J=8.51 Hz, 1H), 6.81 (s, 1H, HO—CH), 7.18 (d, 1H, J=2.68 Hz), 7.34 (dd, 1H, J1=8.82 Hz, J2=2.52 Hz), 7.42-7.48 (m, 3H), 7.55 (d, 1H, J=7.09 Hz), 7.79 (d, 1H, J=8.20 Hz), 7.83-7.87 (m, 1H), 7.96-8.00 (m, 1H). MS (EI): m/z=345 (14), 344 (76), 343 (17), 342 (77), 326 (14), 325 (12), 324 (14), 311 (10), 309 (10), 245 (25), 217 (12), 215 (88), 213 (84), 202 (19), 201 (12), 157 (18), 155 (37), 141 (21), 129 (66), 128 (100), 127 (42), 108 (12), 101 (24), 77 (14), 63 (11). HR-MS (EI): Calcd. for C18H15BrO2: 342.025541. Found: 342.025182.

후처리

  1. additionwas added dropwise via a dropping funnel
  2. waitfor 2 h at −30° C.
  3. customfinally 15 h
  4. customat r.t
  5. customAfter quenching
  6. customthe reaction with 1 M aq. HCl-solution
  7. washphase was washed subsequently with water and brine before it
  8. dry with materialwas dried over MgSO4
  9. customevaporated

출처 및 근거

ORD 기록
ord-3c22cd9248e049b0bd5a8dbc307ac7b0
출처 데이터셋
uspto-grants-2005_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06858600B2

반응 노트

불러오는 중…

이 페이지에서참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트