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Acta Chimica Sinica ›› 1978, Vol. 36 ›› Issue (4): 275-282. Previous Articles Next Articles
计国桢, 李兴亚, 吴成九, 金香珊, 徐天霏, 章云祥, 蒋锡夔
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CHI KUO-CHENG, LI HSING-YA, WU CHENG-JIU, CHIN HSING-SAN, HSU TIEN-FEI, CHANG YUN-HSIANG, JIANG HSI-KWEI
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NMR and mass spectral data of seventeen monosubstituted fluoroalkylcyclopropanes are presented; the shielding effect of the fluoroalkyl groups on the ring-protons are discussed.Fluorine substitution on the carbon a to the ring not only deshields all the ring protons, but also produces anothor interesting effect.Wheroas ordinary alkyl side-chain causes a difference in shielding on the cis and trams protons with a Δδ-value of ~0.4ppm,the Δδ-values of the above mentioned cyclopropanes a,re a function of the number of fluorine atoms substituted on the a-carbon.
CHI KUO-CHENG, LI HSING-YA, WU CHENG-JIU, CHIN HSING-SAN, HSU TIEN-FEI, CHANG YUN-HSIANG, JIANG HSI-KWEI. STRUCTURE-PROPERTY RELATIONSHIP OF FLUOROOLEFINS--Ⅱ.THE NMR AND MASS SPECTRA OF MONOSUBSTITUTED FLUOROALKYLCYCLOPROP ANES.[J]. Acta Chimica Sinica, 1978, 36(4): 275-282.
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