Syntheses of cyclic diselenides through diselenolates and the following deselenation reactions by means of three ways were studied. The preparation of the cyclic diselenides in the presence of excess sodium borohydride gave thirty-eight diselenides containing diselena[3.3]cyclophanes and alicyclic diseleno compounds in high yields in addition to two triple-bridged selenacyclophanes. Photodeselenation
/2n/cyclophanes are prepared in a one-step process from bromomethyl benzenes and (Ph3P)2Ni(C2H4).
由一溴甲基苯和(Ph 3 P)2 Ni(C 2 H 4),一步制备二个n /环烷。
Syn-5,13-dimethyl[2.2]metacyclophane. Synthesis, spectra and thermal stability
作者:Yutaka Fujise、Yoshisuke Nakasato、Sho Itô
DOI:10.1016/s0040-4039(00)84677-8
日期:1986.1
The title compound was synthesized in 3 steps from trithia[23](1,3,5)cyclophane. Activation parameters for its change to the anti conformer as well as its NMR, IR and UV spectra were secured.