4-Hydroxybenzaldehyde → 4-[2-(1,3-Dioxolan-2-yl)ethoxy]benzaldehyde

HRID 785

반응식

HRID 785 반응식
[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1.Br[CH2:11][CH2:12][CH:13]1[O:18][CH2:17][CH2:16]C[O:14]1.[I-].[K+].C(=O)([O-])[O-].[K+].[K+]>C(OCC)(=O)C.C(#N)C>[O:18]1[CH2:17][CH2:16][O:14][CH:13]1[CH2:12][CH2:11][O:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1

참가 물질

7

반응물 4

HCID 1264-HydroxybenzaldehydeHCID 4875Potassium IodideHCID 11430Potassium CarbonateHCID 5206561,3-Dioxane, 2-(2-bromoethyl)-

생성물 1

HCID 196934664-[2-(1,3-Dioxolan-2-yl)ethoxy]benzaldehyde수율 104.5%

시약·촉매·용매 2

HCID 6342Acetonitrile용매HCID 8857Ethyl Acetate용매

실험 절차

In a 500 ml flask, 120 ml of acetonitrile, 13.8 g of 4-hydroxybenzaldehyde, 19.9 g of 2-(2-bromoethyl)-1,3-dioxane, 1.8 g of potassium iodide, and 35.8 g of potassium carbonate were placed and then, reacted at 80° C. for 5 hr. Thereafter, to the reaction mixture was added 200 ml of ethyl acetate and washed once with a saturated aqueous potassium carbonate solution, distilled water and saturated saline. The washed organic phase was dried over anhydrous magnesium sulfate and the solvent was removed, to give 23.7 g of 4-(2-[1,3]-dioxolan-2-yl-ethoxy)benzaldehyde.

후처리

  1. customreacted at 80° C. for 5 hr
  2. washwashed once with a saturated aqueous potassium carbonate solution
  3. distillationdistilled water and saturated saline
  4. dry with materialThe washed organic phase was dried over anhydrous magnesium sulfate
  5. customthe solvent was removed

출처 및 근거

ORD 기록
ord-ab767623531e408bb0c0320b5128145a
출처 데이터셋
uspto-grants-1998_03
특허 번호
US05723258

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