Cyanation of various alcohols by a new type of oxidation–reduction condensation is described. Primary alkyl diphenylphosphinites, 2,6-dimethyl-1,4-benzoquinone (DMBQ), and diethyl cyanophosphonate ...
One-Pot Synthesis of N-Substituted β-Amino Alcohols from Aldehydes and Isocyanides
作者:Răzvan C. Cioc、Daan J. H. van der Niet、Elwin Janssen、Eelco Ruijter、Romano V. A. Orru
DOI:10.1002/chem.201500210
日期:2015.5.18
A practical two‐stage one‐potsynthesis of N‐substituted β‐aminoalcohols using aldehydes and isocyanides as starting materials has been developed. This method features mild reaction conditions, broad scope, and general tolerance of functional groups. Based on a less common central carbon–carbon bond disconnection, this protocol complements traditional approaches that involve amines and various carbon
作者:Embarek Alwedi、J. Armando Lujan-Montelongo、Rodrigo Cortés-Mejía、Jorge M. del Campo、Bilal Altundas、Fraser F. Fleming
DOI:10.1002/ejoc.201900903
日期:2019.8.7
Carbene intermediates are implicated for the first time in an extremely unusual low temperature, isocyanide‐to‐nitrile isomerization. Chelators such as TMEDA redirect the exchange to a lithiated isocyanide whose alkylation affords trisubstituted isocyanides.
Synthesis of Isocyanides by Reacting Primary Amines with Difluorocarbene
作者:Yi-Xin Si、Peng-Fei Zhu、Song-Lin Zhang
DOI:10.1021/acs.orglett.0c03472
日期:2020.11.20
route for preparing a versatile building block of isocyanides from primary amines is developed. Difluorocarbene, generated in situ from decarboxylation of chlorodifluoroacetate, reacts efficiently with primary amines to produce isocyanides. Various primary amines are well tolerated, including aryl, heteroaryl, benzyl, and alkyl amines, as well as amine residues in amino acids and peptides. Late-stage