The Journal of Organic Chemistry

Trimethylsilyl polyphosphate for intramolecular Friedel-Crafts cyclizations

EM Berman, HDH Showalter

文献索引：Berman, Ellen M.; Showalter, H. D. Hollis Journal of Organic Chemistry, 1989 , vol. 54, # 23 p. 5642 - 5644

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被引用次数: 20

摘要

Chemical shifts are expressed in ppm from TMS and CFCl, as external references. Coupling constants are expressed in hertz. These characteristics were in agreement with those given in the 1iterat~ re. l~(18 mL) was carefully added, and the pH was adjusted to 6 or 7. The solution was left for the night, and then the organic phase was separated, washed, and dried over magnesium sulfate. Diethyl ether was distilled off, leaving a crude oil which was flash ...