2,3-二甲基-1,3-丁二烯合成路线 (共 777 条)
反应条件
in water T=293°C; 0.416667 h;
参考文献
Korzenski, Michael B.; Kolis, Joseph W.
Tetrahedron Letters, 1997 , vol. 38, # 32 p. 5611 - 5614
反应条件
1.1: benzene / 1 h / 45 °C 1.2: 1 h / |Reflux 2.1: potassium hydroxide / methanol / 2 h / |Reflux 3.1: 1.5 h / 20 °C View Scheme
参考文献
Chen, Qingqi; Wang, Tianyu; Zhang, Yi; Wang, Qiuan; Ma, Jinshi
Synthetic Communications, 2002 , vol. 32, # 7 p. 1031 - 1040
反应条件
Ledwith–Weitz salt in dichloromethane; water T=0°C; Diels-Alder cycloaddition; 0.00277778 h;
参考文献
Gao; Bauld
Tetrahedron Letters, 2000 , vol. 41, # 32 p. 5997 - 6000
参考文献
Zeitschrift fuer Naturforschung, B: Chemical Sciences, , vol. 46, # 8 p. 978 - 984
反应条件
in toluene byproducts: C6H5Si(C6H9)C6H4CH2NMe2; Irradiation (UV/VIS); Ar-atmosphere; irradn. (room temp., 6 h); evapn., chromy. (SiO2, pentane / ether = 90 : 10); elem. anal.;
参考文献
Chauhan, Bhanu P. S.; Corriu, Robert J. P.; Lanneau, Gerard F.; Priou, Christian; Auner, Norbert; et al.
Organometallics, 1995 , vol. 14, p. 1657 - 1666
反应条件
propionic acid 1.) 80 deg C, 6 h, 2.) reflux, 4 h; various reagents in 2nd step; Product distribution;
参考文献
Zaidlewicz, Marek; Binkul, Jacek R.; Sokol, Wojciech
Journal of Organometallic Chemistry, 1999 , vol. 580, # 2 p. 354 - 362
反应条件
Ambient temperature;
参考文献
Liebigs Annalen der Chemie, , # 10 p. 1604 - 1619
反应条件
selenium in toluene Heating; Yields of byproduct given;
参考文献
Nakayama, Juzo; Akimoto, Keiichi; Niijima, Jun; Hoshino, Masamatsu
Tetrahedron Letters, 1987 , vol. 28, # 38 p. 4423 - 4426
反应条件
in toluene T=129 - 131°C; 24 h; sealed tube;
参考文献
Tetrahedron, , vol. 39, # 9 p. 1487 - 1498
反应条件
in diethyl ether Irradiation (UV/VIS); (N2); 223 K, 40 min; removal of volatiles (vac.), chromy. (alumina; Et2O/petroleum ether, 243K); elem. anal.;
参考文献
Kreiter, Cornelius G.; Eckert, Ralf
Chemische Berichte, 1997 , vol. 130, # 1 p. 9 - 12