Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
3,4-Dichlorophenyl isocyanate → 1(3,4-Dichlorophenyl)-3-(1-methyl-2-pyrrolidylidene)urea
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 3,4-Dichlorophenyl isocyanate | HCID 7607 | — |
| 반응물 | 1-Methylpyrrolidin-2-imine hydrochloride | HCID 12448967 | — |
| 용매 | Benzene | HCID 241 | — |
| 생성물 | 1(3,4-Dichlorophenyl)-3-(1-methyl-2-pyrrolidylidene)urea | HCID 54317311 | — |
반응 단계
A 6.73 g. (0.05 mole) sample of 2-imino-1-methylpyrrolidine HCl is converted to free base in the usual way. To the K 2 CO 3 -dried, benzene extracts are added a pre-filtered solution of 3,4 -dichlorophenylisocyanate (9.4 g.; 0.05 mole). Almost immediately there is a separation of product. After stirring for a short time, the product is collected and recrystallized from acetone-methanol-water and finally from acetone-water to give the pure product, 1(3,4-dichlorophenyl)-3-(1-methyl-2-pyrrolidylidene)urea. m.p. = 160°-⪆°C.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US03998958 |
| 출처 데이터셋 | uspto-grants-1976_12 |
| ORD ID | ord-eba16abf714e4b03ad443d7ac09360e1 |
| 출처 메모 | uspto-grants-1976_12 |