in dichloromethane (N2); into soln. of B compd. was dropped soln. of Sn compd. within 20 min at -10°C; mixt. was sepd. by fractionated distn. in vac., yielding mixt. of B compds. and sepd. Et3SnCl;
methanol in neat (no solvent) Ar atmospher; addn. of MeOH to (Me2N)2BCCOEt (dropwise, water-cooling), heating (50-60°C, 1 h); fractionation (trap, solid carbon dioxide-cooling); NMR- and IR-spectroscopy;
参考文献
Ponomarev, S. V.; Gromova, E. M.; Nikolaeva, S. N.; Zolotareva, A. S.
Journal of General Chemistry USSR (English Translation), 1989 , vol. 59, p. 2040 - 2045
Zhurnal Obshchei Khimii, 1989 , vol. 59, p. 2277 - 2282
methanol in chloroform-d1 (under Ar); the borane is dissolved in CDCl3 and treated with MeOH, mixt. is heated to 80°C for 0,5 h; monitored by (11)B-NMR;
参考文献
Biffar, Werner; Noeth, Heinrich
Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1981 , vol. 36, # 12 p. 1509 - 1515
