2,4,6-Tribromophenol → HCID 22594837, 화합물

HRID 1579924

반응식

HRID 1579924 반응식
[Br:1][C:2]1[CH:7]=[C:6]([Br:8])[CH:5]=[C:4]([Br:9])[C:3]=1[OH:10].[CH2:11]1[O:13][CH2:12]1.C1OC1C>[Cl-].C[N+](C)(C)C>[Br:1][C:2]1[CH:7]=[C:6]([Br:8])[CH:5]=[C:4]([Br:9])[C:3]=1[O:10][CH:12]([OH:13])[CH3:11]

참가 물질

5

반응물 3

HCID 14832,4,6-TribromophenolHCID 6354Ethylene OxideHCID 6378Propylene Oxide

생성물 1

HCID 22594837HCID 22594837, 화합물

시약·촉매·용매 1

HCID 6379Tetramethylammonium chloride촉매

실험 절차

Monomers of type (e) are prepared by the reaction of 2,4,6--tribromophenol with an alphaolefin oxide such as ethylene oxide and propylene oxide, in the presence of 1 to 3 percent tetramethylammonium chloride at 80° to 100°C. for 3 to 6 hours to form 2,4,6-tribromophenoxyethanol. The reaction mixture is washed thoroughly with water after dissolving in solvent, dried with a drying agent, and stripped of solvent under reduced pressure at 40° to 60°C. The product is then analyzed for hydroxyl number. The yield of this intermediate is generally 40 to 60%. The intermediate is then reacted with maleic anhydride at 80° to 100°C. for 3 to 5 hours to form mono-2,4,6-tribromophenoxyethyl maleate.

출처 및 근거

ORD 기록
ord-074ca8aac0154b98b241aa824efb5eb5
출처 데이터셋
uspto-grants-1976_01
특허 번호
US03932181

연결된 노트

불러오는 중…