Nachweis innermolekularer beweglichkeit durch NMR-spektroskopie—XV
作者:H. Kessler、D. Leibfritz
DOI:10.1016/s0040-4020(01)92757-7
日期:1970.1
The influence of substituents Z on the rates of syn-anti-isomerization has been studied using guanidines as typical examples of imines X2C = NZ. In the series: quinone imine < ketimime < C-aryl-imin < iminocarbonate < iminodithiocarbonate < guanidine the isomerization rate increases. The inversion mechanism was also proved by variation of Z. The inversion in imines is easier in the series: Z = OCH3
已经使用胍作为亚胺X 2 C = NZ的典型实例研究了取代基Z对顺-反异构化速率的影响。系列中:醌亚胺<酮亚胺
Pruszynski, Przemyslaw, Canadian Journal of Chemistry, 1987, vol. 65, p. 626 - 629
作者:Pruszynski, Przemyslaw
DOI:——
日期:——
Leffek, Kenneth T.; Pruszynski, Przemyslaw; Thanapaalasingham, Kohila, Canadian Journal of Chemistry, 1989, vol. 67, p. 590 - 595
作者:Leffek, Kenneth T.、Pruszynski, Przemyslaw、Thanapaalasingham, Kohila
DOI:——
日期:——
CAN. J. CHEM., 65,(1987) N 3, 626-629
作者:
DOI:——
日期:——
A Direct Access to N-Arylation of Guanidines by Ligand-Free, Copper Catalysis at Room Temperature
作者:Manijeh Nematpour、Elham Abedi、Elahe Abedi
DOI:10.2174/1570178615666171222162430
日期:2018.7.2
The copper (I)-catalyzed cross-coupling reactions between aryl halides and guanidines to
produce N-aryl guanidines have been developed. Mild reaction conditions, good yields, ligand-free,
easy work-up, no column chromatography, and ease of handling at room temperature are the main aspects
of the method.