-
temperature overnight and at
reflux (39-40 °C) over
several hours to give the
quaternized product (see the
article on Selectfluor). Due to
steric hindrance and...
- reaction. PPh3
combines with
alkyl halides to give
phosphonium salts. This
quaternization reaction is
particularly fast for
benzylic and
allylic halides: PPh3...
- example, in the
following reaction, the
nitrogen atom is said to be
quaternized as it has gone from 3 to 4 substituents: R 3 N + RCl ⟶ R 4 N + Cl − {\displaystyle...
- by the
quaternization of
triphenylphosphine with an
alkyl halide.
Wittig reagents are
usually derived from a
primary alkyl halide.
Quaternization of triphenylphosphine...
-
secondary amines.
These amines are then
treated with
methyl chloride. The
quaternization of
alkyl amines by
alkyl halides is
widely do****ented. In
older literature...
- two main
methods of
chitosan quaternization:
direct quaternization and
indirect quaternization. The
direct quaternization of
chitosan amino acids treats...
- anions, such as
benzoate or saccharinate. It can be
obtained by the
quaternization of lidocaine, a po****r anesthetic, with
benzyl chloride or a similar...
-
methacrylic acid,
quaternized with
dimethylsulphate Polyquaternium-9
Homopolymer of N,N-(dimethylamino)ethyl
ester of
methacrylic acid,
quaternized with bromomethane...
- from 3,4-disubsituted-1,2,4-triazol
molecule by
quaternization of the 1 nitrogen. This
quaternization can be done by
reaction with
alkyl iodides (or other...
- the
remaining tertiary amine to form a
quaternary ammonium center (a
quaternization reaction). CH3(CH2)10COOH + H2NCH2CH2CH2N(CH3)2 → CH3(CH2)10CONHCH2CH2CH2N(CH3)2...
