2-(4-Bromobutoxy)tetrahydro-2H-pyran → Tert-butyldiphenyl-[16-(tetrahydropyran-2-yloxy)hexadec-11-ynyloxy]silane
Reaktionsgleichung
[Si:1]([O:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][C:29]#[CH:30])([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[CH2:32][CH2:33][CH2:34][CH2:35][O:36][CH:37]1[CH2:42][CH2:41][CH2:40][CH2:39][O:38]1>>[C:14]([Si:1]([C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)([C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[O:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][C:29]#[C:30][CH2:32][CH2:33][CH2:34][CH2:35][O:36][CH:37]1[CH2:42][CH2:41][CH2:40][CH2:39][O:38]1)([CH3:15])([CH3:16])[CH3:17]Komponenten
3
Versuchsvorschrift
Alkylation of 12-(tert-butyldiphenylsilyloxy)dodec-1-yne with 2-(4-bromobutoxy)tetrahydropyran as described above gave tert-butyldiphenyl-[16-(tetrahydropyran-2-yloxy)hexadec-11-ynyloxy]silane (66%) as a colorless oil which was used in the next reaction without further purification. TLC: 10% EtOAc/hexane, Rf≈0.5.
Quellen und Nachweise
- ORD-Eintrag
- ord-7b1419e508ef496ba8fcca332cd759cd