813 results on '"Chakraborti, Asit"'
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152. Catalytic procedures for multicomponent synthesis of imidazoles: selectivity control during the competitive formation of tri- and tetrasubstituted imidazoles
153. “All-water” chemistry of tandem N-alkylation–reduction–condensation for synthesis of N-arylmethyl-2-substituted benzimidazoles
154. Lack of correlation between catalytic efficiency and basicity of amines during the reaction of aryl methyl ketones with DMF-DMA: an unprecedented supramolecular domino catalysis
155. ChemInform Abstract: Organocatalytic Application of Ionic Liquids: [bmim][MeSO4] as a Recyclable Organocatalyst in the Multicomponent Reaction for the Preparation of Dihydropyrimidinones and -thiones.
156. ChemInform Abstract: Efficient Organocatalytic Dual Activation Strategy for Preparing the Versatile Synthons (2E)‐1‐(Het)Aryl/styryl‐3‐(dimethylamino)prop‐2‐en‐1‐ones and α‐(E)‐[(Dimethylamino)methylene]cycloalkanones.
157. Zinc Tetrafluoroborate Hydrate as a Mild Catalyst for Epoxide Ring Opening with Amines: Scope and Limitations of Metal Tetrafluoroborates and Applications in the Synthesis of Antihypertensive Drugs (RS)/(R)/(S)-Metoprolols
158. Nonsolvent Application of Ionic Liquids: Organo-Catalysis by 1-Alkyl-3-methylimidazolium Cation Based Room-Temperature Ionic Liquids for Chemoselective N-tert-Butyloxycarbonylation of Amines and the Influence of the C-2 Hydrogen on Catalytic Efficiency
159. ChemInform Abstract: Ionic Liquid Catalyzed Reaction of Thiols with α,β-Unsaturated Carbonyl Compounds-Remarkable Influence of the C-2 Hydrogen and the Anion.
160. Organocatalytic Application of Ionic Liquids: [bmim][MeSO4] as a Recyclable Organocatalyst in the Multicomponent Reaction for the Preparation of Dihydropyrimidinones and -thiones
161. Efficient Organocatalytic Dual Activation Strategy for Preparing the Versatile Synthons (2E)-1-(Het)Aryl/styryl-3-(dimethylamino)prop-2-en-1-ones and α-(E)-[(Dimethylamino)methylene]cycloalkanones
162. Surfactant mediated oxygen reuptake in water for green aerobic oxidation: mass-spectrometric determination of discrete intermediates to correlate oxygen uptake with oxidation efficiency
163. Ionic liquid catalysed reaction of thiols with α,β-unsaturated carbonyl compounds—remarkable influence of the C-2 hydrogen and the anion
164. Supramolecular Assemblies in Ionic Liquid Catalysis for Aza-Michael Reaction
165. ChemInform Abstract: A Mild and Chemoselective Method for Ester O-Alkyl Cleavage Using in situ Generated Potassium Thiophenoxide from Catalytic Quantities of Base.
166. ChemInform Abstract: One-Pot Synthesis of Nitriles from Aldehydes under Microwave Irradiation: Influence of the Medium and Mode of Microwave Irradiation on Product Formation.
167. ChemInform Abstract: Selective Deprotection of Aryl Acetates, Benzoates, Pivalates, and Tosylates under Nonhydrolytic and Virtually Neutral Conditions.
168. ChemInform Abstract: A Simple and Highly Efficient One-Pot Chemoselective Synthesis of Nitriles from Aldehydes: Mechanistic Insight and Selectivity Control Through Modulation of Electronic and Steric Factors.
169. Progress in COX-2 Inhibitors: A Journey So Far
170. Degradation of 4-Nitrophenol, 2-Chloro-4-nitrophenol, and 2,4-Dinitrophenol by Rhodococcus imtechensis Strain RKJ300
171. Corrigendum to “New PPARγ ligands based on barbituric acid: Virtual screening, synthesis and receptor binding studies” [Bioorg. Med. Chem. Lett. 18 (2008) 4959]
172. ChemInform Abstract: Protic Acid Immobilized on Solid Support as an Extremely Efficient Recyclable Catalyst System for a Direct and Atom Economical Esterification of Carboxylic Acids with Alcohols.
173. ChemInform Abstract: One-Pot Synthesis of 2-Substituted Benzoxazoles Directly from Carboxylic Acids.
174. ChemInform Abstract: Organocatalytic Methods for Chemoselective O-tert-Butoxycarbonylation of Phenols and Their Regeneration from the O-t-Boc Derivatives.
175. Magnesium Perchlorate
176. ChemInform Abstract: Catalytic Application of Room Temperature Ionic Liquids: [bmim][MeSO4] as a Recyclable Catalyst for Synthesis of Bis(indolyl)methanes: Ion-Fishing by MALDI-TOF-TOF MS and MS/MS Studies to Probe the Proposed Mechanistic Model of Catalysis.
177. Zinc perchlorate hexahydrate as a new and highly efficient catalyst for synthesis of 2-hydroxysulfides by opening of epoxide rings with thiols under solvent-free conditions: Application for synthesis of the key intermediate of diltiazem
178. A novel environmentally friendly process for carbon–sulfur bond formation catalyzed by montmorillonite clays
179. Counterattack Mode Differential Acetylative Deprotection of Phenylmethyl Ethers: Applications to Solid Phase Organic Reactions
180. ChemInform Abstract: Zirconium(IV) Compounds as Efficient Catalysts for Synthesis of α‐Aminophosphonates.
181. FTIR Studies on Differential Intermolecular Association in Crystalline and Amorphous States of Structurally Related Non-Steroidal Anti-Inflammatory Drugs
182. ChemInform Abstract: Fluoroboric Acid Adsorbed on Silica-Gel (HBF4-SiO2) as a New, Highly Efficient and Reusable Heterogeneous Catalyst for thia-Michael Addition to α,β-Unsaturated Carbonyl Compounds.
183. ChemInform Abstract: “On Water” Synthesis of 2,4‐Diaryl‐2,3‐dihydro‐1,5‐benzothiazepines Catalyzed by Sodium Dodecyl Sulfate (SDS).
184. ChemInform Abstract: Triphenylphosphine as a Novel Organocatalyst for Chemoselective O-tert-Butoxycarbonylation of Phenols.
185. ChemInform Abstract: Tetrafluoroboric Acid Adsorbed on Silica Gel as a Reusable Heterogeneous Dual‐Purpose Catalyst for Conversion of Aldehydes/Ketones into Acetals/Ketals and Back Again.
186. Zirconium(IV) Compounds As Efficient Catalysts for Synthesis of α-Aminophosphonates
187. Fluoroboric acid adsorbed on silica-gel (HBF4–SiO2) as a new, highly efficient and reusable heterogeneous catalyst for thia-Michael addition to α,β-unsaturated carbonyl compounds
188. Triphenylphosphine as a Novel Organocatalyst for Chemoselective O-tert-Butoxycarbonylation of Phenols
189. ChemInform Abstract: “On Water” Organic Synthesis: A Highly Efficient and Clean Synthesis of 2-Aryl/Heteroaryl/Styryl Benzothiazoles and 2-Alkyl/Aryl Alkyl Benzothiazolines.
190. Tetrafluoroboric Acid Adsorbed on Silica Gel as a Reusable Heterogeneous Dual-Purpose Catalyst for Conversion of Aldehydes/Ketones into Acetals/Ketals and Back Again
191. One-Pot Synthesis of 2-Substituted Benzoxazoles Directly from Carboxylic Acids
192. Catalytic application of room temperature ionic liquids: [bmim][MeSO4] as a recyclable catalyst for synthesis of bis(indolyl)methanes. Ion-fishing by MALDI-TOF-TOF MS and MS/MS studies to probe the proposed mechanistic model of catalysis
193. Comments on non-citation by H.R. Shaterian et al. [J. Mol. Catal. A: Chem. 272 (2007) 142–151] of the original work on the discovery of HClO4–SiO2
194. Microwave-Accelerated Solvent- and Catalyst-Free Synthesis of 4-Aminoaryl/alkyl-7-chloroquinolines and 2-Aminoaryl/alkylbenzothiazoles.
195. Zinc(II) Perchlorate Hexahydrate Catalyzed Opening of Epoxide Ring by Amines: Applications to Synthesis of (RS)/(R)-Propranolols (XIV) and (RS)/(R)/(S)-Naftopidils (XVI).
196. An Extremely Efficient Three-Component Reaction of Aldehydes/Ketones, Amines and Phosphines (Kabachnik—Fields Reaction) for the Synthesis of α-Aminophosphonates Catalyzed by Magnesium Perchlorate.
197. Magnesium Perchlorate as a New and Highly Efficient Catalyst for the Synthesis of 2,3‐Dihydro‐1,5‐benzothiazepines.
198. Perchloric Acid Adsorbed on Silica Gel (HClO4—SiO2) as an Inexpensive, Extremely Efficient, and Reusable Dual Catalyst System for Acetal/Ketal Formation and Their Deprotection to Aldehydes/Ketones.
199. Scope and Limitations of HClO4—SiO2 as an Extremely Efficient, Inexpensive, and Reusable Catalyst for Chemoselective Carbon—Sulfur Bond Formation.
200. An Extremely Efficient Three-Component Reaction of Aldehydes/Ketones, Amines, and Phosphites (Kabachnik−Fields Reaction) for the Synthesis of α-Aminophosphonates Catalyzed by Magnesium Perchlorate.
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