1: With n-butyllithium; diisopropylamine in tetrahydrofuran; hexane T=-60 - 0°C; 0.75 h; 2: 4-Chloro-pyridine in tetrahydrofuran; hexane T=-90 - -60°C; 3: formic acid ethyl ester With water more than 3 stages;
boron trifluoride diethyl etherate in diethyl ether
参考文献
Krasnaja,Zh.A.; Kucherov,V.F.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1965 , p. 96 - 99
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1965 , # 1 p. 110 - 115