N-Silyloxaziridines: Synthesis and Use for Electrophilic Amination
摘要:
N-Silyloxaziridines were synthesized for the first time. Their tert-butyldiphenylsilyl (TBDPS) derivatives were stable reagents that were prepared on a multigram scale in three steps and in 44% overall yield from the corresponding benzylamines. They were mild electrophilic aminating reagents that reacted at room temperature with diversely substituted primary and secondary amines to produce N-monoalkyl or N,N-dialkyl benzaldehyde hydrazones in 44-87% yield.
Ohme,R.; Preuschhof,H., Justus Liebigs Annalen der Chemie, 1968, vol. 713, p. 74 - 86
作者:Ohme,R.、Preuschhof,H.
DOI:——
日期:——
Raman spectra of SiC nanorods with different excitation wavelengths
作者:Yan Yan、Fumin Huang、Shulin Zhang、Bangfen Zhu、Eryi Shang、Shoushan Fan
DOI:10.1007/bf02901158
日期:2001.11
With increasing excitation wavelength from 514 to 782 mn, a significant difference in the Raman spectra of SIC nanorods was observed as compared to bulk material. The intensity ratio of the LO mode to that of the IF mode increases with the excitation wavelength increasing. This has been identified as resonant Raman scattering caused by Frohlich interaction.
Nguyen, Thu-Huong; Milcent, Rene; Barbier, Geo, Journal of Heterocyclic Chemistry, 1985, vol. 22, p. 1383 - 1388