1,3-Diphenylpropan-1,3-diamines IX. reaction of ?-chlorooxime ethers with ?-lithiobenzylamines
作者:A. Kaiser、W. Wiegrebe
DOI:10.1007/bf00817268
日期:——
The carbanions of the benzylamine derivatives 1-4 have been reacted with alpha-chlorooxime ether 5 in order to gel precursors of 1,3-diphenylpropane-1,3-diamines. Isonitrile 1 afforded the expected result, whereas lithiated benzamide 2 underwent oxidative dimerization and transmetallated chlorooxime derivative 5. Isoxazolidine 3 gave the condensation product 21 as a mixture of diastereomers; treatment of imine 4 led to the desired amine-oxime 15 in low yield.
A modular lead-oriented synthesis of diverse piperazine, 1,4-diazepane and 1,5-diazocane scaffolds
作者:Thomas James、Paul MacLellan、George M. Burslem、Iain Simpson、J. Andrew Grant、Stuart Warriner、Visuvanathar Sridharan、Adam Nelson
DOI:10.1039/c3ob42512f
日期:——
A modular synthetic approach is described in which combinations of cyclic sulfamidate and hydroxy sulfonamide building blocks may be converted into piperazine, 1,4-diazepine and 1,5-diazocane scaffolds.