Nuclear Magnetic Resonance Spectroscopy. The Effect of Solvent on Magnetic Nonequivalence Arising from Molecular Asymmetry<sup>1a</sup>
作者:George M. Whitesides、John J. Grocki、David Holtz、Herbert Steinberg、John D. Roberts
DOI:10.1021/ja01083a022
日期:1965.3
Stereospecific Cross-Coupling of Secondary Organotrifluoroborates: Potassium 1-(Benzyloxy)alkyltrifluoroborates
作者:Gary A. Molander、Steven R. Wisniewski
DOI:10.1021/ja307861n
日期:2012.10.10
Potassium1-(alkoxy/acyloxy)alkyltrifluoroborates have been synthesized through a copper-catalyzed diboration of aldehydes and subsequent conversion of the resulting potassium1-(hydroxy)alkyltrifluoroborates. The palladium-catalyzed Suzuki-Miyaura reaction employing the potassium1-(benzyloxy)alkyltrifluoroborates with aryl and heteroaryl chlorides provides access to protected secondary alcohols in
Novel synthetic method for allylic amination of cyclic allylic ethers using chlorosulfonyl isocyanate
作者:Sang Hwi Lee、In Su Kim、Qing Ri Li、Guang Ri Dong、Young Hoon Jung
DOI:10.1016/j.tetlet.2011.02.036
日期:2011.4
The introduction of amines to allylic or benzylic position of cyclic compounds with chlorosulfonylisocyanate is developed in high to excellent yields. This method provides a novel access to biologically active compounds including the framework of 1-aminoindanes, 1-aminotetralines, and 1-amino-2-hydroxy cyclic compounds. Mechanistic evidence for the reaction pathway is also provided.