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Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HRID 2296610생성일: 2026년 10월 26일

Sulfuric Acid → 2,3,4,5-Tetrahydro-1,4-benzoxazepin-5-one

https://huagongshe.com/reaction/2296610

반응식

참여 물질

역할이름HCID투입량
반응물Sulfuric AcidHCID 1118—
반응물Ammonium HydroxideHCID 14923—
반응물Sodium AzideHCID 33557—
반응물ChromanoneHCID 68110—
용매Acetic AcidHCID 176—
생성물2,3,4,5-Tetrahydro-1,4-benzoxazepin-5-oneHCID 340629—

반응 조건

온도50 °C

반응 단계

To 4-chromanone (50 g, 340 mmol) in acetic acid (670 ml) was added sodium azide (66.31 g, 1.02 mol) and conc. sulfuric acid (100 ml) dropwise at 0° C. The mixture was heated to 50° C. for 4 h and then cooled to room temperature. The mixture was poured onto ice (1 l) and basified with conc. ammonium hydroxide. The mixture was stirred for 24 h and the solids were collected by filtration (30.43 g, 55%), MSm/z 164 [M+H]+.

출처 및 근거

DOI10.6084/m9.figshare.5104873.v1
특허 번호US06489322B1
출처 데이터셋uspto-grants-2002_12
ORD IDord-03f9efa86db84893bb5663712dff59b7
출처 메모uspto-grants-2002_12