1: cyclopentanone With chloro-trimethyl-silane; lithium diisopropyl amide in tetrahydrofuran
T=0°C; Michael addition; 2 h;
2: 4-methyl-pent-3-en-2-one With titanium tetrachloride in dichloromethane
T=-78°C; Michael addition; 1 h;
参考文献
Chakraborty, Tushar Kanti; Chattopadhyay, Amit Kumar; Samanta, Rajarshi; Ampapathi, Ravi Sankar
Tetrahedron Letters, 2010 , vol. 51, # 33 p. 4425 - 4428
Bradbury et al.
Journal of the Chemical Society, 1947 , p. 1394,1398
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Asinger et al.
Monatshefte fuer Chemie, 1957 , vol. 88, p. 464,472