227 results on '"*ORGANONITROGEN compounds"'
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102. Enantioselective homoallyl-cyclopropanation of dibenzylideneacetone by modified allylindium halide reagents—rapid access to enantioenriched 1-styryl-norcarene
103. Enantioselective cyanocarbonation of ketones with chiral base
104. The synthesis of an enantiopure planar-chiral Lewis acid complex via kinetic resolution and its application in stereoselective additions to imines
105. Stereoselective preparation of 1,2,4-oxadiazole derivatives substituted by pentafluorophenyl by 1,3-dipolar cycloaddition reaction
106. Palladium-catalyzed syntheses of tetrahydrocarbazolones as advanced intermediates to carbazole alkaloids
107. Synthetic approaches towards an indole alkaloid isolated from the marine sponge Halichondria melanodocia
108. π-Allyl palladium approach toward the diazabicyclo[3.2.1]octane core of the naphthyridinomycin alkaloids
109. XZH compounds as potential 1,3-dipoles. Part 63: Silver catalysed azomethine ylide cycloaddition—the synthesis of spiro homoserine lactone analogues
110. A novel method for the synthesis of dipyrromethanes by metal triflate catalysis
111. A general approach to crinine-type Amaryllidaceae alkaloids: total syntheses of (±)-haemanthidine, (±)-pretazettine, (±)-tazettine, and (±)-crinamine
112. Diastereoselective alkylation of iminomethylenephosphinates possessing an asymmetric center at the phosphorus atom
113. 4,4′-Dihydroxy-3,3′,5,5′-tetramethoxyazodioxybenzene: an unexpected dimer formed during hydroxylamine extractions of wheat flour
114. Synthesis of enantiopure cis-decahydroquinolines from homotyramines by Birch reduction and aminocyclization
115. Total syntheses of crinine and related alkaloids
116. Netamines A–G: seven new tricyclic guanidine alkaloids from the marine sponge Biemna laboutei
117. Cyclization reactions of N-acryloyl-2-aminobenzaldehyde derivatives: formal total synthesis of martinellic acid
118. Efficient synthesis of pyrroles and 4,5,6,7-tetrahydroindoles via palladium-catalyzed oxidation of hydroxy-enamines
119. The application of vinylogous iminium salt derivatives to an efficient synthesis of the pyrrole containing alkaloids Rigidin and Rigidin E
120. Phosphonylated thiocarbonyl ylides from the reaction of aromatic thioketones with diethyl diazomethylphosphonates
121. Planned and unplanned halogenations in route to selected oroidin alkaloids
122. Synthetic study of hetisine-type aconite alkaloids. Part 1: Preparation of tetracyclic intermediate containing the C14–C20 bond
123. Synthetic study of hetisine-type aconite alkaloids. Part 2: Preparation of hexacyclic compound lacking the C-ring of the hetisan skeleton
124. Synthetic study of hetisine-type aconite alkaloids. Part 3: Total synthesis of (±)-nominine
125. One-step construction of carbazoles by way of the palladium-catalyzed double N-arylation reaction and its application to the total synthesis of murrastifoline-A
126. Synthesis of pyrrolo[3,2,1-hi]indazoles from indole-7-ketoximes
127. Heteroatom directed photoannulation: synthesis of indoloquinoline alkaloids: cryptolepine, cryptotackieine, cryptosanguinolentine, and their methyl derivatives
128. Organocatalyzed route to enantioenriched pipecolic esters: decarboxylation of an aminomalonate hemiester
129. Synthesis of 5-aryl-2-oxopyrrole derivatives as synthons for highly substituted pyrroles
130. Novel tandem multi-component reactions in the stereoselective synthesis of highly functionalised pyrrolidines
131. The Ugi reaction with 2-substituted cyclic imines. Synthesis of substituted proline and homoproline derivatives
132. Reactions of salicyl N-tosylimines or salicylaldehydes with diethyl acetylenedicarboxylate for the synthesis of highly functionalized chromenes
133. A new synthesis of the phytotoxin porritoxin
134. An in-depth analysis of the effect of substituents on imines in cycloaddition reactions with nitrosoalkenes
135. Novel mercaptoacetylative expeditious annulation of 5-mercaptopyrimidine ring on azoles using 1,3-oxathiolan-5-one
136. Synthesis of highly-functionalised pyridines via hetero-Diels–Alder methodology: reaction of 3-siloxy-1-aza-1,3-butadienes with electron deficient acetylenes
137. A unified synthetic strategy toward oroidin-derived alkaloids premised on a biosynthetic proposal
138. Dimerization of (+)-myrmicarin 215B. A potential biomimetic approach to complex myrmicarin alkaloids
139. The structural and synthetic implications of the biosynthesis of the calycanthaceous alkaloids, the communesins, and nomofungin
140. Biomimetic investigations from reactive lysine-derived C5 units: one step synthesis of complex polycyclic alkaloids from the Nitraria genus
141. Daphtenidines A–D, new Daphniphyllum alkaloids from Daphniphyllum teijsmannii
142. Syntheses of the cylindrospermopsin alkaloids
143. Synthesis of (−)-lentiginosine, its 8a-epimer and dihydroxylated pyrrolizidine alkaloid from d-glucose
144. Vinylic nucleophilic substitution in functionalized 2-vinylpyrroles: a route to a new family of stable enols
145. Synthesis of the heterocyclic core of martinelline and martinellic acid
146. Synthesis of vinylpyrroles, vinylfurans and vinylindoles via a Brønsted acid catalyzed highly regio- and stereoselective cis-hydroarylation of ynamides
147. Asymmetric aziridine synthesis by aza-Darzens reaction of N-diphenylphosphinylimines with chiral enolates. Part 1: Formation of cis-aziridines
148. Synthesis of formyl-thienylpyrroles: versatile building blocks for NLO materials
149. A unified synthetic approach to trachylobane-, beyerane-, atisane- and kaurane-type diterpenes
150. A facile synthesis of 9-dialkylamino-9H-pyrrolo[1,2-a]indoles via iminium salts generated from 2-(pyrrol-1-yl)benzaldehydes and secondary amine hydrochlorides in the presence of NaI/TMSCl/Et3N
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