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1-acylpyridinium salts (73) 73
chemistry, organic (64) 64
grignard-reagents (45) 45
asymmetric-synthesis (38) 38
stereoisomerism (19) 19
molecular structure (18) 18
regioselective addition (16) 16
derivatives (14) 14
alkaloids (13) 13
chemistry, multidisciplinary (13) 13
index medicus (13) 13
stereoselective-synthesis (13) 13
chemistry (12) 12
chiral 1-acylpyridinium salts (12) 12
catalysis (11) 11
chemical properties (10) 10
chiral 1-acyl-4-methoxypyridinium salts (10) 10
enantiopure n-acyldihydropyridones (9) 9
pyridine (9) 9
reagents (9) 9
asymmetric synthesis (8) 8
nitrogen heterocycles (8) 8
piperidines (8) 8
pyridinium salts (8) 8
research (8) 8
convenient method (7) 7
piperidines - chemistry (7) 7
pyridines - chemistry (7) 7
pyridones - chemistry (7) 7
2,3-dihydro-4-pyridones (6) 6
analysis (6) 6
cyclization (6) 6
dihydropyridines (6) 6
enantioselective synthesis (6) 6
n-alkylpyridinium salts (6) 6
synthesis (6) 6
1-acyl-4-methoxypyridinium salts (5) 5
4-alkylpyridines (5) 5
alkaloid synthesis (5) 5
alkaloids - chemical synthesis (5) 5
alkaloids - chemistry (5) 5
article (5) 5
copper (5) 5
diels-alder reaction (5) 5
heterocycles (5) 5
nucleophilic addition (5) 5
pyridines (5) 5
pyridinium compounds - chemistry (5) 5
regioselective synthesis (5) 5
1,2-dihydropyridines (4) 4
1,4-dihydropyridines (4) 4
acylation (4) 4
alkylation (4) 4
asymmetric catalysis (4) 4
chemistry, physical (4) 4
diastereoselective addition (4) 4
enantioselective addition (4) 4
facile synthesis (4) 4
formal synthesis (4) 4
k ee chemistry, organic (4) 4
lycopodium alkaloids (4) 4
magnetic resonance spectroscopy (4) 4
n-acyl-2,3-dihydro-4-pyridones (4) 4
organic compounds (4) 4
oxidation-reduction (4) 4
pyridones - chemical synthesis (4) 4
reduction (4) 4
1,4-dihydropyridine derivatives (3) 3
1st total-synthesis (3) 3
4-pyridines (3) 3
akuammiline alkaloids (3) 3
alkynes (3) 3
allylation (3) 3
amino alcohols - chemical synthesis (3) 3
arylation (3) 3
bridged indole alkaloids (3) 3
convenient synthesis (3) 3
cyanogen bromide - chemistry (3) 3
diels-alder reactions (3) 3
dihydropyridines - chemical synthesis (3) 3
indicators and reagents - chemistry (3) 3
indole alkaloids (3) 3
inhibitors (3) 3
mass spectrometry (3) 3
model (3) 3
organolithium reagents (3) 3
organometallic compounds - chemistry (3) 3
oxidation (3) 3
piperidines - chemical synthesis (3) 3
pyridines - chemical synthesis (3) 3
pyridinium compounds (3) 3
stereocontrolled alkylation (3) 3
terminal alkynes (3) 3
ylides (3) 3
zinc (3) 3
1,1-bisketene acetals (2) 2
1,3-bis (2) 2
1,4-dihydropyridine (2) 2
absolute-configuration (2) 2
acetic acid (2) 2
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Tetrahedron, ISSN 0040-4020, 09/2015, Volume 71, Issue 39, pp. 7354 - 7360
A dihydropyridone-mediated approach to the morphine skeleton was investigated. The hexahydroisoquinoline 2 was synthesized in nine steps using N-acylpyridinium... 
1-Acylpyridinium salts | Nitrogen heterocycles | Asymmetric synthesis | Alkaloid synthesis | ELUCIDATION | ASYMMETRIC-SYNTHESIS | REAGENTS | CHEMISTRY, ORGANIC | FORMYLATION | BIOSYNTHESIS | OPIUM-ALKALOIDS | DERIVATIVES | UTILITY | Morphine | Synthesis | Organic compounds
Journal Article
Chemical Science, ISSN 2041-6520, 2016, Volume 7, Issue 7, pp. 4105 - 4109
We report an enantioselective Ni-catalyzed cross coupling of arylzinc reagents with pyridinium ions formed in situ from pyridine and a chloroformate. This... 
Journal Article
Chemical Science, ISSN 2041-6520, 2016, Volume 7, Issue 7, pp. 4105 - 4109
We report an enantioselective Ni-catalyzed cross coupling of arylzinc reagents with pyridinium ions formed in situ from pyridine and a chloroformate. This... 
1,2-DIHYDROPYRIDINES | ASYMMETRIC-SYNTHESIS | FORMAL SYNTHESIS | CHEMISTRY | 1-ACYLPYRIDINIUM SALTS | DIHYDROPYRIDINES | PARTIAL REDUCTION | N-ACYLPYRIDINIUM IONS | CHIRAL 1-ACYL-4-METHOXYPYRIDINIUM SALTS | CHEMISTRY, MULTIDISCIPLINARY | GRIGNARD-REAGENTS | Pyridines | Cross coupling | Construction | Reagents | Nickel | Feedstock | Derivatives | Chloroformate
Journal Article
Organic Letters, ISSN 1523-7060, 10/2005, Volume 7, Issue 22, pp. 5059 - 5062
Journal Article
Organic and Biomolecular Chemistry, ISSN 1477-0520, 12/2010, Volume 9, Issue 2, pp. 337 - 346
In this perspective we discuss the recent developments of stereoselective synthesis of substituted pyridines, piperidines, and piperazines from cheap and... 
METALATION | IMINOPYRIDINIUM YLIDES | COUPLING REACTIONS | ACYLATION | ALKYLATION | ARYLATION | CHEMISTRY, ORGANIC | 1-ACYLPYRIDINIUM SALTS | ASYMMETRIC HYDROGENATION | DERIVATIVES | REGIOSELECTIVE ADDITION
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 2001, Volume 42, Issue 39, pp. 6839 - 6841
An asymmetric synthesis of 1-deoxynojirimycin ( 2 ) mediated by a chiral auxiliary is reported. The dihydropyridone 4 was converted to diol 11 in three steps... 
CHEMISTRY, ORGANIC | 1-ACYLPYRIDINIUM SALTS | INHIBITORS
Journal Article
Catalysts, ISSN 2073-4344, 12/2018, Volume 8, Issue 12, p. 632
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 06/2015, Volume 56, Issue 23, pp. 3683 - 3685
[Display omitted] A racemic and asymmetric synthesis of cermizine D (1) was accomplished in six steps from 4-methoxypyridine or 4-methoxy-3-TIPS-pyridine in... 
1-Acylpyridinium salts | Nitrogen heterocycles | Asymmetric synthesis | Lycopodium alkaloids | Alkaloid synthesis | FORMAL SYNTHESIS | QUINOLIZIDINE-ALKALOIDS | CHEMISTRY, ORGANIC | CERNUANE-TYPE | Alkaloids | Synthesis | Pyridine | Organic compounds
Journal Article
Journal of Heterocyclic Chemistry, ISSN 0022-152X, 07/2018, Volume 55, Issue 7, pp. 1589 - 1595
Camalexin is synthesized on a gram scale by coupling of thiazole and indole in an amidoalkylation–oxidation sequence. Several high‐yielding implementations of... 
ALKYL CHLOROFORMATE | N-ACYLIMINIUM IONS | ASYMMETRIC-SYNTHESIS | ACYL CHLORIDES | ALPHA-AMIDOALKYLATION | INTERMOLECULAR ADDITION-REACTIONS | PHYTOALEXIN CAMALEXIN | CHEMISTRY, ORGANIC | 1-ACYLPYRIDINIUM SALTS | CRUCIFERS | REGIOSELECTIVE ADDITION
Journal Article
Tetrahedron: Asymmetry, ISSN 0957-4166, 2002, Volume 13, Issue 1, pp. 95 - 106
Chiral enolates of indolylacetyl derivatives 6a– f undergo addition to pyridinium salt 7 with complete trans-selectivity and varied diastereofacial... 
ENANTIOPURE N-ACYLDIHYDROPYRIDONES | ENANTIOSELECTIVE MICHAEL REACTIONS | VINCA MINOR L | AKUAMMILINE ALKALOIDS | ASYMMETRIC-SYNTHESIS | CHEMISTRY, PHYSICAL | 1-ACYLPYRIDINIUM SALTS | PYRIDINIUM SALTS | BRIDGED INDOLE ALKALOIDS | NUCLEOPHILIC-ADDITION | STRYCHNOS ALKALOIDS
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 2001, Volume 42, Issue 4, pp. 585 - 588
The addition of a series of organocopper (alkyl, vinyl, allyl, and ethynyl) reagents to 3-acyl- N-alkylpyridinium salts, followed by acylation of the... 
pyridinium salts | pyridines | acylation | copper and compounds | Pyridines | Pyridinium salts | Copper and compounds | Acylation | CONVENIENT METHOD | CHEMISTRY, ORGANIC | 1-ACYLPYRIDINIUM SALTS | 4-ALKYL(ARYL)PYRIDINES | CUPRATE REAGENTS | HIGHER-ORDER | REGIOSELECTIVE SYNTHESIS | ANTAGONISTS | DERIVATIVES | GRIGNARD-REAGENTS
Journal Article
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