Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
4-nitrobenzyl 2-diazo-4-[(2R,3R)-3-{1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl}-4-oxoazetidin-2-yl]-3-oxobutanoate → 4-nitrobenzyl (2R,5R,6R)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]heptane-2-carboxylate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 4-nitrobenzyl 2-diazo-4-[(2R,3R)-3-{1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl}-4-oxoazetidin-2-yl]-3-oxobutanoate | HCID 54393073 | — |
| 촉매 | Acetic acid, rhodium(2+) salt | HCID 21674 | — |
| 용매 | Benzene | HCID 241 | — |
| 생성물 | 4-nitrobenzyl (2R,5R,6R)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]heptane-2-carboxylate | HCID 18599211 | 98.9% |
반응 단계
A mixture of 4-nitrobenzyl 2-diazo-4-[(2R,3R)-3-{1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl}-4-oxoazetidin-2-yl]-3-oxobutanoate (1.00 g) and rhodium (II) acetate (5 mg) in benzene (50 ml) was refluxed for 25 minutes. After cooling to ambient temperature, the mixture was filtered through cellulose powder. The filtrate was evaporated to give 4-nitrobenzyl (2R, 5R, 6R)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]heptane-2-carboxylate (0.94 g) as an amorphous solid.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04640915 |
| 출처 데이터셋 | uspto-grants-1987_02 |
| ORD ID | ord-20b20df99f884caab790e3739c40b356 |
| 출처 메모 | uspto-grants-1987_02 |