作者:Frank R. Hewgill、Ulrike Höfler、Richard C. Power、Hartmut B. Stegmann
DOI:10.1002/(sici)1097-458x(199601)34:1<47::aid-omr817>3.0.co;2-w
日期:1996.1
C‐5 and C‐6 was observed with 2‐tert‐butyl‐1,4‐benzoquinone, but C‐6 substitution predominated. Reduction of the latter isomers and of the naphthoquinones gave ESR spectra to which splitting constants were assigned with the help of ENDOR spectroscopy and selective deuteration.
丙氨酸和亮氨酸的丁酯与叔丁基 1,4-苯醌和 1,4-萘醌反应得到相应的 N-取代醌。在 C-5 和 C-6 处均观察到 2-叔丁基-1,4-苯醌取代,但 C-6 取代占主导地位。后一种异构体和萘醌的还原给出了 ESR 光谱,在 ENDOR 光谱和选择性氘化的帮助下分配了分裂常数。