RADICAL ANIONS AS INTERMEDIATES IN SUBSTITUTION REACTIONS
RADICAL ANIONS AS INTERMEDIATES IN SUBSTITUTION REACTIONS
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DOI：
10.1111/j.2164-0947.1966.tb02245.x
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发表时间：
1966-11
影响因子：
5.2
通讯作者：
N. Kornblum
中科院分区：
文献类型：
--
作者：
N. Kornblum
D4-VIIIa约为2.1±0.2。在相同条件下分解为DS-V111a和D5-VIIIB的混合物，其中苯基移位的DS-VIIIB与苯基未移位的D，-Villa的比率再次约为2.1±0.2。没有亚甲基质子信号，而/3-甲基信号在1.60处显示为清晰的单线态。在标记体系的情况下，a-和/3-甲基和亚甲基的质子信号的出现，特别是DS-IIIOH，以及观察到的积分，表明很少或没有外来的质子交换或扰乱。
D4-VIIIa is ca. 2.1±0.2. threo-$-111-under the same conditions decomposes to a mixture of Ds-Vllla and D5-VIIIb in which the ratio of phenylshifted Ds-VIIIb to phenyl-unshifted D,--Villa is again ca. 2.1± 0.2. A methylene proton signal is absent, and the/3-methyl signal appears as a clear singlet at 1.60. The appearance of the proton signals for the a-and/3-methyl groups and the methylene group in the case of the labeled systems, especially the DS-IIIOH, as well as the observed integrations, indicate very little or no extraneous proton exchange or scrambling.