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900818 Sigma-Aldrich

1-Butyl-2,3-bis(dicyclohexylamino)cyclopropenimine

Green Alternative

Synonym: 3-(Butylimino)-N1,N1,N2,N2-tetracyclohexylcycloprop-1-ene-1,2-diamine, n-Bu-C1-Cy HCl, CPI-Cy HCl

  • CAS Number 1802064-84-1

  • Empirical Formula (Hill Notation) C31H53N3

  • Molecular Weight 467.77

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Properties

Related Categories 12 Principles Aligned Products, Boronate Esters, Boronic Acids and Derivatives, Catalysis and Inorganic Chemistry, Chemical Synthesis,
Quality Level   100
form   powder or crystals
reaction suitability   reagent type: catalyst
greener alternative product characteristics   Catalysis
Learn more about the Principles of Green Chemistry.
greener alternative category   Aligned
storage temp.   2-8°C

Description

Application

Cyclopropenimines are a highly effective new class of Brønsted base catalysts, the so-called “superbases” for organocatalysis. Due to the prevalence of chemical reactions involving proton transfer as a key mechanistic event, Brønsted bases have become indispensable tools for the practice of organic synthetic chemistry. This is one of a suite of Brønsted catalysts reported by Tristan Lambert and co-workers available through Sigma-Aldrich.

Other Notes

Cyclopropenimine Superbases: Competitive Initiation Processes in Lactide Polymerization

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Boronic Acid Esters - Chemfiles Volume 4 Article 2

The synthesis of biaryl compounds via the Suzuki–Miyaura coupling reaction has become more commonplace now that many arylboronic acids are readily available. Several years ago, Miyaura et al. demonst...
Chemfiles Volume 4 Article 2
Keywords: Coupling reactions, Suzuki-Miyaura coupling

Lambert Group - Professor Product Portal

From our library of Articles, Sigma-Aldrich presents Lambert Group - Professor Product Portal
Keywords: Asymmetric synthesis, Catalysis, Michael reaction

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