- Heterocyclic
compounds are organic compounds that contain a ring structure containing
atoms in addition to carbon, such as sulfur, oxygen or nitrogen, as part
of the ring.
- Heterocycles with
three atoms in the ring are more reactive because of ring strain. Those
containing one heteroatom are, in general, stable. Those with two
heteroatoms are more likely to occur as reactive
intermediates.
- Many heterocycles
have important pharmaceutical properties.
- Oxiranes (epoxides)
are the most commonly encountered three-membered
heterocycles.
- Heterocyclic
compounds are of fundamental importance to biological processes and are
wide spread as natural products.
- Preparation of
heterocyclic compounds was performed in two steps: condensation and/or
alkylation, which were conducted according to two alternative microwave
procedures, without solvent or with small amount of polar, ecological
friendly solvent
e.g. ethanol.
- Reaction of dimethyl
acetylene dicarboxylate (DMAD) with esters and amides
of
dithiocarboxylic acids are well known methods for preparation of
five membered S, and S,Nheterocycles.
- The application of
microwave irradiation in organic synthesis for conducting reactions at
highly accelerated rates is an emerging technique,
- The reaction of
N-(2-cyanophenyl)benzimidoyl chloride with reagents
containing a
thioamide moiety, i.e. thioacetamide, benzylthiourea,
symmetrical
dialkyl- and diarylthioureas gave different cyclic
products: 3,1-benzothiazine, 1,3,5-
benzotriazocine and
quinazoline.
- Oxygen heterocyclic
compounds play an important role in the characterization of citrus
oils
controlling both their quality and authenticity.
- Some heterocyclic
amines (HCAs) found in cooked meat are known carcinogens.
- Synthetically
produced
heterocycles designed by organic chemists are used for
instance as agrochemicals and pharmaceuticals and play an important role
in human life.
- Heterocyclic
compounds offer a high degree of structural diversity and have proven to
be broadly and economically useful as therapeutic agents.
- The synthesis of the
3-carbethoxycoumarin heterocycle involves a transesterification followed
by an aldol condensation reaction starting with salicylaldehyde and
diethyl malonate.
- Nitro-carbon
heterocyclic structures are found in various therapeutic agents,
including numerous antihistamines, as well as antiseptic, antiarrythmic,
antirheumatic, antibiotic and other pharmaceutical compounds.
- Hydrogenation of
nitrobenzenes bearing aldehyde-containing
substituents over
heterogeneous platinum or palladium
catalysts gives medium and/or
large heterocyclic amines as a
result of simple or dimeric
cyclisation in moderate to good
yields; a range of heteroatoms can be
incorporated into the
macrocycles, enhancing their potential as
ligands. |
Introduction
- Heterocyclic
Chemistry
- Heterocyclic
compounds
- List of Heterocyclic
Compounds
- Quinine
- Heterocycles
- Heterocyclic
Compounds - Organic Chemistry
- Heterocyclic
compound - Info
Properties
- Biological
Properties of Three
3-Heterocyclic-Thiomethyl
Cephalosporin
Antibiotics
- The effect of
heterocyclic S,S’-ligands on the electrochemical
properties of some
cobalt(III) complexes in acid
- Influence of
Heterocyclic Substituents on Mesomorphic
Properties of Copper
Phthalocyanine Derivatives
- The Inhibition
Effect of Heterocyclic Compounds towards the Corrosion of Iron in
Phosphoric Media
- Microwave Assisted
Synthesis and Fragrance Properties of Heterocyclic Analogues of Jasmone
- Synthesis and
nonlinear optical properties of some donor–acceptor
oxadiazoles
- Synthesis and
Properties of Oxazole Heterocycles
MSDS
- 1,3-Acetondicarboxylic acid anhydride
- Acridine
- Bar’s
Leaks
- Canon Ink
Tank
- 2 -
Cyanopyridine
- Dabco 33-LV
Catalyst
- Poast
Herbicide
Synthesis and
Process
- Synthesis of
naturally occurring o-heterocyclic compounds of biological
activity
- Synthesis of 3-
Carbethoxycoumarin, A Heterocyclic Compound
- The Fate of certain
heterocyclic ring compounds in the animal body
- Plant Enzyme
Reactions Leading to the Formation of Heterocyclic Compounds
- Enantioselective synthesis of heterocyclic compounds
mediated by organoselenium reagents
- One Pot Synthesis of
Side Chain Fluorinated Heterocyclic Compounds by Microwave
Irradiation
- New methods for the
synthesis of heterocyclic compounds
- Preparation of
heterocyclic compounds by reaction of dimethyl and diethyl acetylene
dicarboxylate (DMAD, DEAD) with thiosemicarbazone derivatives
- Synthesis of
Heterocyclic Compounds by Radical Electrochemical approach in
Environmentally Friendly Media
- Rapid Screening of
Oxygen Heterocyclic Compounds in Citrus Essential Oils
- A new route to
medium and large heterocyclic compounds
- Synthesis of
Heterocyclic Skeletons by the Reaction of N1-(2-Cyanophenyl)-benzimidoyl
Chloride with Thioamides
- Synthesis of some
new hetercyclic compounds with expected potential biological activity
- Synthesis of
heterocyclic compounds via vicarious nucleophilic substitution of
hydrogen
|
Patent
- Benzo-fused
5-membered heterocyclic compounds, their production and
use
- Heterocyclic
Compounds produced from Biomass
- Fused Heterocyclic
Compounds and Pharmaceutical Applications thereof
- Heterocyclic
Compounds
- Heterocyclic
Compounds Extracted by a Hydrocarbon
- Process for
Producing Di - Or Polynuclear Heterocyclic Compounds
- Organophosphate
Ester Derivatives of Heterocyclic Compounds and Process
- Heterocyclic
Compounds and Their Preparation and Use
- Heterocyclic
Compounds and Use
Projects and
Use
- Assessment of
Organic Contaminants in Emissions from Refuse-Derived
Fuel
Combustion
- Heterocyclic compounds
- Towards an
improvement of the risk assessment of polycyclic (hetero) aromatic
hydrocarbons
- Nitrogen starvation
promotes biodegradation of n-heterocyclic compounds in soil
- Oil & Natural Gas
Projects
- Approaches to the
Synthesis of Energetic Heterocyclic Compounds Suitable for Use in
Insensitive Explosive and Propellant Compositions
- Novel Antifungal
Compounds Derived from Heterocyclic Positional Scanning Combinatorial
Libraries
Company
Profiles
- Company from North
California
- Company
Profile
- Company from
India
- Company from
China
- Company from
Germany
Consultants
- Consultant from New
Orleans
- Consultant from
California
- Experts
- Consultant from
Texas
- Consultancy
Services
Reports
- Discovery of Novel
Heterocyclic Compounds with Anticancer Properties
- Synthesis of New
Heterocycles with Biologically Interesting Properties
- Prices of compounds
of the Florida Center for Heterocyclic Compounds
- Stereochemistry of
New Nitrogen-Containing Heterocyclic Compounds
- Heterocyclic
compounds in tar oil contaminated groundwater
- Biodegradation of
Homocyclic and Heterocyclic Aromatic Compounds by Rhodopseudomonas
palustris Strains
- Heterocyclic
Compounds with Sulfone Functional Groups (II)
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