- Picoline refers to
three different methylpyridine isomers, all with the chemical formula
C6H7N and a molar mass of 93.13 g mol−1. All three
are colourless
liquids at room temperature and pressure.
- 2- and 4-picoline
are produced in gas phase reactions at temperatures of about 400C from
acetaldehyde and ammonia with the use of solid bed or fluid bed catalyst
on the basis of aluminium silicate.
- The high purity
alpha or gamma isomer is recovered as a reffinate or extract product,
respectively.
- 3-Alkylated
pyridines such as 3-picoline, 3(5)-ethyl pyridine and
2-methyl-5-ethyl-pyridine (MEP) are the natural choice as starting
materials for the nicotinates.
- 3-picoline is the
ideal starting-material for nicotinic acid or amide: the methyl group
can be selectively and readily oxidised to the carboxyl derivative with
few by-products or pollutants.
- High selectivity
coupled with the low molecular weight ratio (1:1.3) compared to the
end-products make picoline an attractive industrial starting-material
for the production of nicotinic derivatives.
- The bulk of picoline
is produced today by the condensation of acetaldehyde, formaldehyde and
ammonia in the gas-phase, which
simultaneously produces large
quantities of pyridine. A selective and suitable alternative method
starting from these or similar simple
molecules has yet to be
developed.
|
General and Process
- Picoline
- The Mechanism of the
Reaction of 2-Picoline N-Oxide with Acetic Anhydride
- Green Sustainable
Chemistry in the Production of Nicotinates
- Ammoxidation of
Isomeric Picolines on Molybdenum Phosphate Catalyst
- Thermochemical
parameters of Picoline N-oxide adducts of some divalent transition metal
bromides
- Oxidation reactions
in the synthesis of fine and intermediate chemicals using
environmentally benign oxidants and the right reactor system
- Unprecedented C-6
functionalisation of 3-picoline induced by a methyl to C-6
lithium
shift
- The crystal
structures of diaquatetra(P-picoline)M(II) perchlorate
- Microbial
Transformation of a-Picoline, 2-Ethylpyridine and
ac-Picolinate
Company Profiles and
Suppliers
- Company in
Bangalore
- Company in Uttar
Pradesh
- Company in Andhra
Pradesh
- Company in
Indiana
- Beta Picoline
Suppliers
- B-Picoline Worldwide
Suppliers
Consultants
- Consultant in
California
- Expert Curriculum
Vitae
- Project
Consultant
|
Patent
-
Preparation of 3-picoline
-
Process
for the production of 3-picoline
-
Process
for the preparation of vinylpyridine from picoline over modified
zeolites
-
Process
for producing alpha-picoline
-
Single pot
process for preparing metal picolinates from alpha picoline
-
Picoline
oxides
-
Separation
of picoline isomers
Material
Safety Data Sheet
-
2-Amino-3-picoline
-
Safety
data for beta-picoline
-
5-Amino-2-bromo-6-picoline
-
Picoline(Gamma)
-
3-Picoline-N-oxide
-
2-Picoline
Products
-
Beta
Picoline
-
Picoline
Punched flat cables
-
Gamma
Picoline
Report
-
Picoline
Assessment Report
-
New
Photoremovable Protecting Groups for Carboxylic Acids with High
Photolytic
Efficiencies at Near-UV Irradiation -
One-pot
reductive amination of aldehydes and ketones with a-picoline-borane in
methanol, in water, and in neat conditions
-
3-Picoline
Review of Toxicological Literature
Order the CD ROM
Today |
|
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