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lgq101木虫 (小有名气)
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[求助]
求一段有机合成翻译~~~谢谢
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| General Procedure for Tanaka Ethyl Cyanoformate [2 + 2 + 2] Cyclotrimerization (28). Vacuum-dried resin 4 (800 mg, 0.86 meq, 1.0 eq) was swollen with degassed DCE (20 mL) for 10 min. A stock solution of ethyl cyanoformate, Rh(COD)2BF4, and rac-BINAP (50∶1.5∶2 molar ratio, 0.5 M nitrile in DCE, 8 mL, 4.0 mmol, 4.65 eq) was added and the mixture was stirred at 80 °C for 12 h. The resin was cooled, washed, and dried to afford pyrrolopyridine carboxylates 28. |
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xiaoqihu
铁杆木虫 (著名写手)
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2楼2011-08-26 12:15:13
