돌아가기
Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HRID 1072948생성일: 2026년 10월 27일

Methanol → 4-Ethylresorcinol

https://huagongshe.com/reaction/1072948

반응식

참여 물질

역할이름HCID투입량
반응물MethanolHCID 887—
반응물2',4'-DihydroxyacetophenoneHCID 6990—
반응물HCID 178418361HCID 178418361—
촉매NickelHCID 935—
촉매PalladiumHCID 23938—
용매Acetic AcidHCID 176—
생성물4-EthylresorcinolHCID 17927—

반응 조건

온도72.5 °C

반응 단계

2,4-Dihydroxy acetophenone (76 g, 0.5 mole) was charged in a 1 liter autoclave reactor along with methanol (300 ml), acetic acid (5 ml), and Raney Nickel (15.2 g washed several times with water and water/methanol) and 750 mg of Pd/C. The pH of the system was 5.0. The autoclave was checked for leaks with nitrogen. The autoclave was pressurized to 500 psi with hydrogen and stirred at 70-75° C. up to 8 hrs. During this time 97% of the theoretical value for hydrogen was consumed. The reaction was vented and the contents were filtered through a milipore filter to give a yellow solution. Concentration of this solution in vacuo gave a solid. This solid was crystalized from 1,2-dichloroethane to give 4-ethyl resorcinol in 85% isolated yield. The unreacted 2,4-dihydroxy acetophenone was recovered (−13%) from the reaction mixture and was recycled. The structure of 4-ethyl resorcinol and 2,4-dihydroxy acetophenone were characterized by NMR (see FIG. 1), Gas Chromatography (see FIG. 2), IR (See FIG. 3) and Mass spectroscopy. The mass spectroscopy indicated that the mass was 138.

출처 및 근거

DOI10.6084/m9.figshare.5104873.v1
특허 번호US06911562B2
출처 데이터셋uspto-grants-2005_06
ORD IDord-0785870683a348adabc3f32bf6bacb96
출처 메모uspto-grants-2005_06