Technology Process of 7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-germanorbornadiene
There total 1 articles about 7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-germanorbornadiene which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
iodine; magnesium;
In
tetrahydrofuran;
byproducts: 1-germacyclopentadiene; under argon 2-bromofluorobenzene was added to a mixture of the other components at 0-5°C., the mixture was stirred at 20°C until nearly all of the Mg was dissolved; evapn. (12 torr), the residue is resolved in CH2Cl2 and filtered from the remaining Mg, crystn. (CH2Cl2/EtOH), column chromy. (pentane/Et2O), elem. anal.;
DOI:10.1021/ja00342a043
- Guidance literature:
-
In
tetrachloromethane;
byproducts: C2Cl6, 1,2,3,4-tetraphenylnaphtalene; 4 h., 70 °C.; 1,2,3,4-tetraphenylnaphtalene pptd. by EtOH, Me2GeCl2 and C2Cl6 are estimated by HPLC, Me2GeClCCl3 by NMR;
DOI:10.1021/ja00342a043
- Guidance literature:
-
In
cyclohexane;
Irradiation (UV/VIS); irradn. with a low-pressure mercury lamp (254 nm) for 5h at room temp.; distn. under reduced pressure, purifn. by GLC;