Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Dimethylformamide → 3-(4-chlorobenzylidene)-1H-naphtho[2,1-b][1,4]thiazin-2(3H)-one
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Dimethylformamide | HCID 6228 | — |
| 반응물 | 4-Chlorobenzaldehyde | HCID 7726 | — |
| 반응물 | Sodium Methoxide | HCID 10942334 | — |
| 반응물 | 1H-Naphtho[2,1-b][1,4]thiazin-2(3H)-one | HCID 13823452 | — |
| 용매 | Water | HCID 962 | — |
| 생성물 | 3-(4-chlorobenzylidene)-1H-naphtho[2,1-b][1,4]thiazin-2(3H)-one | HCID 53764522 | 52.8% |
반응 단계
A mixture of 1H-naphtho[2,1-b][1,4]thiazin-2(3H)-one (5.17 g), 4-chlorobenzaldehyde (5.62 g), sodium methoxide (1.73 g) and dimethylformamide (80 ml) is refluxed for 4.5 hours. After cooling, the reaction mixture is poured into water and the resulting precipitate is separated by filtration, washed and dried and then is recrystallized from tetrahydrofuran-n-hexane to give 3-(4-chlorobenzylidene)-1H-naphtho[2,1-b][1,4]thiazin-2(3H)-one (4.28 g). M.p. 277°-279° C.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US05246929 |
| 출처 데이터셋 | uspto-grants-1993_09 |
| ORD ID | ord-f9dddaae649d44ff923cca915bde63f6 |
| 출처 메모 | uspto-grants-1993_09 |