Use of Polyanions for Alkylation of Hydrazine Derivatives
摘要:
Alkylation of hydrazine and its derivatives still remains a quite complicated task. The novel method utilizing the polyanion strategy is reported. Formation and use of trianion for alkylation of hydrazine derivatives is first reported. Described method provides fast and convenient access to multialkylated derivatives. Scope and limitations of new method are also investigated.
Synthese, Kristallstruktur und Konformation von N2-Dibenzyl-N1-t-butoxycarbonylhydrazin
作者:Zdzisław Gałdecki、Bernard Luciak、Adam S. Redliński、Krzysztof Kaczmarek、Mirosław T. Leplawy
DOI:10.1007/bf00815162
日期:1991.1
The synthesis and the crystal structure of N2-dibenzyl-N1-butoxycarbonyl hydrazine are reported. The compound was prepared from commercially available t-butyl carbazate. It crystallizes in the triclinic space group P 1 with a = 5.479(1) angstrom, b = 9.559(1) angstrom, c = 9.748(1) angstrom, alpha = 63.81(1)-degrees, beta = 87.52(1)-degrees, gamma = 74.07(1) angstrom, Z = 1, D = 1.18 g/cm3. The structure was solved by direct methods and refined to R = 0.0329.
KATRITZKY, ALAN R.;RAO, M. SURESH CHANDER, J. CHEM. SOC. PERKIN TRANS. PT 1,(1989) N2, C. 2297-2303
作者:KATRITZKY, ALAN R.、RAO, M. SURESH CHANDER
DOI:——
日期:——
GALDECKI, ZDZISLAW;LUCIAK, BERNARD;REDLINSKI, ADAM S.;KACZMAREK, KRZYSZTO+, MONATSH. CHEM., 122,(1991) N-2, C. 37-42
作者:GALDECKI, ZDZISLAW、LUCIAK, BERNARD、REDLINSKI, ADAM S.、KACZMAREK, KRZYSZTO+
DOI:——
日期:——
Use of Polyanions for Alkylation of Hydrazine Derivatives
作者:Aleksei Bredihhin、Uno Mäeorg
DOI:10.1021/ol702234s
日期:2007.11.1
Alkylation of hydrazine and its derivatives still remains a quite complicated task. The novel method utilizing the polyanion strategy is reported. Formation and use of trianion for alkylation of hydrazine derivatives is first reported. Described method provides fast and convenient access to multialkylated derivatives. Scope and limitations of new method are also investigated.
A Cascade Synthesis of Aminohydantoins Using In Situ-Generated<i>N</i>-Substituted Isocyanates
作者:Jean-François Vincent-Rocan、Christian Clavette、Kyle Leckett、André M. Beauchemin
DOI:10.1002/chem.201405648
日期:2015.3.2
building blocks for the development of cascade reactions in heterocyclic synthesis. These reactive amphoteric intermediates can be accessed in situ via an equilibrium that allows controlled reactivity in the presence of bifunctional partners such as α‐amino esters. A cascade reaction has been carried out that forms 3‐aminohydantoin derivatives using simple phenoxycarbonyl derivatives of hydrazides and