D-Tartaric acid → L-Malic Acid
반응식
[C@@H:1]([OH:10])([C:7]([OH:9])=[O:8])[C@H:2](O)[C:3]([OH:5])=[O:4]>CO>[C:7]([OH:9])(=[O:8])[C@H:1]([CH2:2][C:3]([OH:5])=[O:4])[OH:10]참가 물질
3
시약·촉매·용매 1
실험 절차
One of the intermediates, (S)-1-methyl-3-pyrrolidinol, was synthetized with retention of optical purity as shown in Chart IX starting with (S)-malic acid. The (S)-1-methyl-3-pyrrolidinol was shown to be dextrorotatory. As an alternative method of obtaining the resolved isomers of 1-methyl-3-pyrrolidinol, the racemic mixture was treated with (2S,3S)-tartaric acid in methanol. The resulting crystals, after one recrystallization, were converted to the base. This base was the dextrorotatory (S)-1-methyl-3-pyrrolidinol identical to that produced from (S)-malic acid.
후처리
- customThe resulting crystals, after one recrystallization
출처 및 근거
- ORD 기록
- ord-17438ff4c7274d52954629cf58d0df8e
- 출처 데이터셋
- uspto-grants-1987_02
- 특허 번호
- US04642343
반응 노트
불러오는 중…