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Download QR code; Print/export Download as PDF; ... As the name suggests, a non-nucleophilic base is a sterically hindered organic base that is a poor nucleophile ...
Download QR code; Print/export ... Pages in category "Non-nucleophilic bases" ... This list may not reflect recent changes. Non-nucleophilic base; B. 1,8-Bis ...
TMP is the starting material for an even stronger base, lithium tetramethylpiperidide and the radical species TEMPO. Another non-nucleophilic base is N,N-diisopropylethylamine . Its aqueous p K aH (conjugate acid dissociation constant, a measure of basicity) is 11.07 at 25 °C, [ 1 ] while its p K a (acid dissociation constant, a measure of ...
N,N-Diisopropylethylamine, or Hünig's base, is an organic compound that is a tertiary amine. It is named after the German chemist Siegfried Hünig . It is used in organic chemistry as a non-nucleophilic base. It is commonly abbreviated as DIPEA, DIEA, or i-Pr 2 NEt.
Download QR code; Print/export Download as PDF; ... It is used as a non-nucleophilic base, being comparable to LiHMDS in terms of steric hindrance. Synthesis
As a reagent in organic chemistry, DBU is used as a ligand and base. As a base, protonation occurs at the imine nitrogen. [5] Lewis acids also attach to the same nitrogen. [6] These properties recommend DBU for use as a catalyst, for example as a curing agent for epoxy resins and polyurethane.
Download QR code; Print/export Download as PDF; ... It is a strong, non-nucleophilic base with an approximate pK a of 26 (compare to lithium diisopropylamide, at 36).
The Lewis theory instead defines a Base as an electron-pair donor. The Lewis definition is broader — all Brønsted–Lowry bases are also Lewis bases. For more information see acid–base reaction theories.