2,3-二甲基-1,3-丁二烯合成路线 (共 777 条)
反应条件
in neat (no solvent) Irradiation (UV/VIS); Ge deriv. and a large excess of organic reagent irradiating in a quartztube for 4 h then concg. in vacuo; identified by high-pressure chromy. and NMR spectra;
参考文献
Journal of Organometallic Chemistry, , vol. 264, # 1-2 p. 193 - 206
反应条件
in diethyl ether under N2, to suspn. of Ph3PGeI2 and CH2=CMeCMe=CH2 in ether PhLi (0.45 M soln. in ether) added dropwise at -70°C, after 1 h warmed to room temp., hydrolyzed; dried, analyzed by gas chromy.;
参考文献
Bulletin of the Chemical Society of Japan, , vol. 58, # 3 p. 974 - 977
反应条件
GeI2 in diethyl ether Heating; Product distribution;
参考文献
Bulletin of the Chemical Society of Japan, , vol. 58, # 3 p. 974 - 977
反应条件
Tl(NO3)3*3H2O in methanol; dichloromethane 1 h; Ambient temperature;
参考文献
Chemistry Letters, , p. 997 - 1000
反应条件
Tl(NO3)3*3H2O in methanol; dichloromethane 1 h; Ambient temperature;
参考文献
Chemistry Letters, , p. 997 - 1000
反应条件
in benzene-d6 T=110°C; 12 h;
参考文献
Journal of Organometalic Chemistry, , vol. 649, # 1 p. 25 - 42
反应条件
bis(1,5-cyclooctanediylboryl)monoselenide in dichloromethane; benzene T=110°C; 18 h; other solvent, temperature, reaction time; Product distribution;
参考文献
Shimada, Kazuaki; Jin, Norikazu; Kawaguchi, Michiko; Dobashi, Kumiko; Nagano, Yumi; Fujimura, Manabu; Kudoh, Eiichi; Kai, Tomonari; Saito, Noboru; Masuda, Jun-Ichi; Iwaya, Masaki; Fujisawa, Hiroyuki; Aoyagi, Shigenobu; Takikawa, Yuji
Bulletin of the Chemical Society of Japan, 1997 , vol. 70, # 1 p. 197 - 206
反应条件
in cyclohexane Irradiation (UV/VIS); irradiation of catenate in cyclohexane containing a large excess of 2,3-dimethylbutadiene as trapping agent with a 110 W low pressure Hg arc lamp at room temp. under Ar for 1-4 h; identification by GC and GC-MS;
参考文献
Journal of Organometallic Chemistry, , vol. 412, # 1.2 p. 9 - 19
反应条件
triethylamine in toluene
参考文献
Hoechst Aktiengesellschaft
Patent: US4247488 A1, 1981 ;
反应条件
in neat (no solvent) byproducts: N2, ClCH2CO2CH2CH3; 1 equiv of diazoester adding slowly to an equimolar mixt. of Ge and Sn deriv. to result in exothermic reaction with N2 evolution; after 4 h at 20°C concg., diene ligand adding, heating in a sealed tube for 12h at 120°C; analyzed by gas chromy. and NMR spectroscopy;
参考文献
Journal of Organometallic Chemistry, , vol. 232, # 2 p. 137 - 146