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Preparation and unequivocal identification of the regioisomers of nitrocatech...
ABSTRACTThe four positional isomers of nitrocatechol monobenzyl ether were prepared as intermediates to nitrobenzodioxanes directly from 2-benzyloxyphenol or, through two-four... -
Application of Stereoselective Ether Transfer to the Synthesis of Isotactic P...
An efficient, convergent synthetic strategy has been developed which enables the synthesis of a series of naturally occurring isotactic polymethoxy compounds. Ether transfer... -
Theoretical Studies on Graphyne Substructures: Geometry, Aromaticity, and El...
The geometries of multiply fused dehydrobenzo[12]annulenes [12]DBAs 2−7 with various topologies, which are considered as graphyne fragments, have been optimized at the... -
New Procedure to Mask the 2,3-π Bond of the Indole Nucleus and Its Applicatio...
Treatment of indole alkaloids with hypervalent iodine in the presence of ethylene glycol provides 2,3-ethylene glycol bridged adducts that could be converted into the original... -
Reduced Excimer Formation in Polyfluorenes by Introducing Coil-like Poly[pent...
Conjugated polymers are of special interest due to their excellent optical and optoelectrical properties both in the solid state and in selective solvents. They have... -
Synthesis of Optically Active Vicinal Fluorohydrins by Lipase-Catalyzed Derac...
Three microbial lipases have been used to deracemize trans-2-fluorocycloalkanols 2 both by hydrolysis of the corresponding acetates 3 or chloroacetates 4 and by esterification... -
Direct Electroreductive Preparation of Indolines and Indoles from Diazonium S...
Indolines and indoles are prepared for the first time by direct electrochemical reduction of arenediazonium salts. -
π-Facial Stereoselectivity in Diels−Alder Cycloadditions to 1-Oxaspiro[4.5]de...
The title compound 1, prepared from 1,4-cyclohexanedione monoethylene ketal, was treated with several reactive dienes, including diphenylisobenzofuran and... -
A New Triterpene Synthase fromArabidopsisthalianaProduces a Tricyclic Triterp...
Thirteen oxidosqualene cyclase homologues exist in the genome of Arabidopsis thaliana. One of these genes, At4g15340, was amplified by PCR and expressed in yeast. The yeast... -
Preparation of Medium-Ring Lactones and Lactams by Electrophilic Cyclizations
Preparation of Medium-Ring Lactones and Lactams by Electrophilic Cyclizations -
A Versatile Approach toward the Ansamycin Antibiotics
The ansamycin antibiotics contain metacyclophanic macrolactams, many of which possess potent antitumor activity. Only a few total syntheses of this family of natural products... -
Effective Strategy for the Preparation of Indolocarbazole Aglycons and Glycos...
An effective strategy has been developed for the rapid and efficient preparation of ortho-nitrostyrenes, which can be converted to unsymmetrical 2,2‘-biindoles. A unique... -
Synthesis and Reactivity of a Coordinatively Unsaturated Ruthenium(II) Parent...
The five-coordinate parent amido complex (PCP)Ru(CO)(NH2) (2) (PCP = 2,6-(CH2PtBu2)2C6H3) has been prepared by two independent routes that involve deprotonation of Ru(II) ammine... -
A New Method for the Preparation of Aryl Vinyl Ethers
A New Method for the Preparation of Aryl Vinyl Ethers -
Ortho-Substituted Catechol Derivatives: The Effect of Intramolecular Hydroge...
This paper reports a series of chloride anion receptors containing two catechol head groups connected through their ortho-positions via a spacer chain. The linking group chosen... -
Framework-Reactive Siderophore Analogs as Potential Cell-Selective Drugs. Des...
Currently, the role of DNA-directed alkylating agents as potential anticancer/ antimicrobial drugs is of wide interest. Most of the alkylating agents used clinically as drugs... -
Photoacoustic FTIR Spectroscopy, a Nondestructive Method for Sensitive Analys...
Photoacoustic FTIR Spectroscopy, a Nondestructive Method for Sensitive Analysis of Solid-Phase Organic Chemistry -
Synthesis of Conjugated Oligomers Having Aromatic and Enediyne Units Alternat...
Synthesis and fluorescence properties of π-conjugated compounds having alternately an aromatic ring such as benzene, pyridine, and thiophene and an enediyne unit in the backbone... -
Asymmetric Direct Aldol Reactions of Pyruvic Derivatives
Simple chiral primary−tertiary diamine−Brønsted acid conjugates such as 1e can effectively catalyze the direct aldol reactions of pyruvic derivatives with excellent syn...
