Functional polymers. 1. Poly(cinchona alkaloid-co-acrylonitrile)s. New polymer catalysts for asymmetric synthesis

Functional polymers. 1. Poly(cinchona alkaloid-co-acrylonitrile)s. New polymer catalysts for asymmetric synthesis
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功能性聚合物。

DOI:
10.1021/ja00490a053
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发表时间:
1978
影响因子:
15
通讯作者:
K. Iwai
K. Iwai
中科院分区:
化学1区
文献类型:
--
作者:
N. Kobayashi;K. Iwai

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(16)通过将0.5当量的CSA加入到5a的CH 3CN溶液中,然后从CF 13 CN-MeOFI中进行一次再结晶,以66%的回收率获得5 b的CSA盐(mp 178-179 ℃,[a] D+ 24.16(c 2,MeOH)),其具有足够的光学纯度用于随后的转化。(17)E. J. Corey和K. Achiva,J. Am.化学会,91,1429-1432(1969)。(18)E. W. Colvin,T. A.珀塞尔和R. A,Raphael,J. Chem. Soc.,Perkin Trans.1,1718-1722(1976).
(16) The CSA salt of 5b (mp 178-179 C,[a] D+ 24.16 (c 2, MeOH)), obtained in 66% recovery by addition of 0.5 equiv of CSA to a CH3CN solution of 5a followed by one recrystalllzatlon from CFI3CN-MeOFI, was of sufficient optical purity for the ensuing transformations.(17) E. J. Corey and K. Achiva, J. Am. Chem. Soc., 91, 1429-1432 (1969).(18) E. W. Colvin, T. A. Purcell, and R. A, Raphael, J. Chem. Soc., Perkin Trans. 1, 1718-1722 (1976).