1: (CF3CH2CO)2P(O)CH2CO2CH3 With 18-crown-6 ether; potassium tert-butylate in tetrahydrofuran T=-78°C; 0.25 h; 2: (E)-crotonaldehyde in tetrahydrofuran T=-78°C; 2.5 h; Further stages. Title compound not separated from byproducts.;
参考文献
Ahmed, Md. Moinuddin; Akhmedov, Novruz G.; Cui, Hu; Friedrich, Dirk; O'Doherty, George A.
Heterocycles, 2006 , vol. 70, p. 223 - 233