epsilon-CAPROLACTONE → L-lactide epsilon-caprolactone
반응식
[CH3:1][C@@H:2]1[O:9][C:7](=[O:8])[C@H:6]([CH3:10])[O:5][C:3]1=[O:4].[C:11]1(=[O:18])[O:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1>CCCCC(C([O-])=O)CC.CCCCC(C([O-])=O)CC.[Sn+2]>[CH3:1][C@@H:2]1[O:9][C:7](=[O:8])[C@H:6]([CH3:10])[O:5][C:3]1=[O:4].[C:11]1(=[O:18])[O:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1참가 물질
4
실험 절차
The procedure of Example II is repeated except that 15 grams of L-(-)-lactide, 35 grams of epsilon caprolactone and 0.0105 grams of pure stannous octoate catalyst are blanketed with dry nitrogen in a glass flask and heated for 45 hours at 140° to 142° C. The copolymer is tough and elastic and has good tensile strength and elongation properties. The copolymer has
후처리
- customare blanketed with dry nitrogen in a glass flask
- temperatureheated for 45 hours at 140° to 142° C
출처 및 근거
- ORD 기록
- ord-e88375e22db7491381c44d47cb8c1b75
- 출처 데이터셋
- uspto-grants-1987_02
- 특허 번호
- US04643734
반응 노트
불러오는 중…