Access to Diverse Oxygen Heterocycles via Oxidative Rearrangement of Benzylic Tertiary Alcohols
作者:Brandon T. Kelley、Jennifer C. Walters、Sarah E. Wengryniuk
DOI:10.1021/acs.orglett.6b00672
日期:2016.4.15
A facile method for the synthesis of challenging medium-sized cyclic ethers has been developed via a novel oxidative rearrangement of benzylic tertiaryalcohols. The reaction provides access to cyclic acetals with diverse substitution at both C2 and the aromatic ring. The unique reactivity is enabled by poly(cationic) hypervalent iodine reagents and represents the first synthetic application of this
Carbon-13 magnetic resonance of hydroaromatics. II. Conformation of Tetralin and tetrahydroanthracene and their methyl derivatives
作者:Frederick G. Morin、W. James Horton、David M. Grant、Don K. Dalling、Ronald J. Pugmire
DOI:10.1021/ja00350a042
日期:1983.6
Carbon-13 chemical shift data have been acquired for 36 methylated tetralins and tetrahydroanthracenes. A least-squares regression analysis has been undertaken on the ring carbons of compounds of unequivocal conformation to determine methyl substituent parameters for the two distinct aliphatic positions and the results have been used to estimate the position of equilibrium of conformationally mobile