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Convenient Preparation (convenient + preparation)

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Chemistry100%

Selected Abstracts

Convenient Preparation of Chiral ,,, -Epoxy Ketones via Claisen,Schmidt Condensation-Epoxidation Sequence

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 7 2007
Yongcan Wang
Abstract A novel Clasisen,Schmidt condensation-epoxidation sequence of aldehydes and ketones was developed to produce a series of chiral ,,, -epoxy ketones under asymmetric phase-transfer catalytic conditions. The organocatalytic method reported here can afford chiral ,,, -epoxy ketones under mild conditions with moderate to good yields and up to 96,% ee. [source]

A Convenient Preparation of Enantiomerically Pure (+)-(1R,2R)- and (,)-(1S,2S)-1,2-Diamino-1,2-diphenylethanes

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 7-8 2006
Christopher Braddock
Abstract A gram-scale preparation of (1S,2S)- and (1R,2R)-1,2-diamino-1,2-diphenylethanes, (1S,2S)- 1 and (1R,2R)- 1, is reported via (±)- iso -amarine 4. Strategically, the activation of (±)- iso -amarine 4 for hydrolysis to the required diamines and enantiomeric resolution is achieved simultaneously by formation of two separable diastereoisomeric N -acylamidines 5 and 6 derived from direct DCC-mediated coupling of (±)- iso -amarine 4 with (R)-acetylmandelic acid. iso -Amarine 4 is conveniently obtained from amarine 3, and a one-pot synthesis of the latter is reported from benzaldehyde and hexamethyldisilazane as catalysed by benzoic acid. [source]

ChemInform Abstract: Alcohol Substitution and Dehydrogenation of Selenium Compounds: A Convenient Preparation of Trisubstituted Furans from Allyl-Substituted 1,3-Dicarbonyls.

CHEMINFORM, Issue 48 2008
E. Tang
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

ChemInform Abstract: Convenient Preparation of N-Maleoyl Amino Acid Succinimido Esters Using N-Trifluoroacetoxysuccinimide.

CHEMINFORM, Issue 26 2008
Michael J. Paterson
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

Convenient Preparation of Chiral Phase-Transfer Catalysts with Conformationally Fixed Biphenyl Core for Catalytic Asymmetric Synthesis of ,-Alkyl- and ,,,-Dialkyl-,-amino Acids: Application to the Short Asymmetric Synthesis of BIRT-377.

CHEMINFORM, Issue 41 2007
Yong-Gang Wang
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

A Convenient Preparation of Thioether-Funtionalized Porphyrins.

CHEMINFORM, Issue 14 2007
Michael M. Pollard
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

Convenient Preparation of Pyrano Benzopyranes in Aqueous Media.

CHEMINFORM, Issue 7 2007
M. Kidwai
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

A Convenient Preparation of Aliphatic and Aromatic N-Sulfonylimines Mediated by Sulfamic Acid in Aqueous Media.

CHEMINFORM, Issue 39 2006
Zhenjiang Li
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

A Convenient Preparation of 2-Aroyl-3,3-bis(alkylsulfanyl)acrylaldehydes and Their Application in the Synthesis of 5-Aroyl-2-oxo-1,2-dihydro-2-pyridinecarbonitriles.

CHEMINFORM, Issue 20 2006
Engoor R. Anabha
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

A Convenient Preparation of a Series of 2-Aryl-Substituted Imidazolidines Through Diamine Transfer Reaction.

CHEMINFORM, Issue 50 2005
Donghong Li
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Convenient Preparation and Full Characterization of a Synthetically Useful Salt of the Dithianitronium Cation, SNSSbF6, from Readily Available Starting Materials.

CHEMINFORM, Issue 49 2005
T. Stanley Cameron
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Convenient Preparation of O-Alkylhydroxamic Acids Using 2-Acylpyridazin-3(2H)-ones.

CHEMINFORM, Issue 47 2005
Jeum-Jong Kim
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

A Convenient Preparation of Mixed Allylic and Allenic Thiosulfinates.

CHEMINFORM, Issue 6 2005
Samuel Braverman
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

A Convenient Preparation of 2,3,5,6-Tetrafluoro-4-iodo-benzaldehyde and Its Application in Porphyrin Synthesis.

CHEMINFORM, Issue 52 2004
Jacques Leroy
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

A Convenient Preparation of Tetrahydrofuran-Based Diamines.

CHEMINFORM, Issue 42 2004
Gaifa Lai
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

A Convenient Preparation of Chalcogenoenynes from ,-Bromovinyl Ketene Chalcogenoacetals.

CHEMINFORM, Issue 6 2004
Gilson Zeni
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

A Convenient Preparation of Halide-Containing Quinolinic and Cinchomeronic Acid

CHEMINFORM, Issue 17 2003
Kwang-Nym Cho
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Convenient Preparation of 2-Phenylethyl 3,3-Difluoro-2-methylpropionate.

CHEMINFORM, Issue 14 2003
Takashi Yamazaki
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

A Convenient Preparation of 4-Carboxamide Derivatives of Pyridazino[4,5-b]indoles and Pyridazino[4,5-b]benzo[b]furans.

CHEMINFORM, Issue 11 2003
Jose C. Gonzalez-Gomez
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Convenient Preparation of Indolyl Malonates via Carbenoid Insertion.

CHEMINFORM, Issue 6 2003
Romelo Gibe
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

ChemInform Abstract: One-Step Iodination of the Diazocyclopentadien-2-ylcarbonyl Group , A New and Convenient Preparation of Effective Radiolabeled Photoaffinity Probes.

CHEMINFORM, Issue 9 2002
Elena L. Vodovozova
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

ChemInform Abstract: Convenient Preparation of Some N-Substituted 1,2,3,4-Tetrahydroisoquinolines Lacking Electron-Donating Substituents.

CHEMINFORM, Issue 2 2002
Cornelia Locher
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

ChemInform Abstract: Convenient Preparation of 1-Amidoindenes.

CHEMINFORM, Issue 12 2001
Alan R. Katritzky
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

The first general synthesis of 3-iodo-4- R -furazans

HETEROATOM CHEMISTRY, Issue 3 2004
Aleksei B. Sheremetev
The first general synthetic route has been developed for the convenient preparation of iodofurazans. The approach was accomplished by one-pot diazotization-iodation reaction of appropriate aminofurazans. A combination of sodium nitrite and iodine in organic solvent under anhydrous conditions as the reaction conditions allowed to solve problem in iodofurazans preparation. The investigation of the substituent's influence on NMR data of the iodofurazans has been carried out. The X-ray crystal structure of the 3-amino-4-iodofurazan 1d is reported. © 2004 Wiley Periodicals, Inc. Heteroatom Chem 15:199,207, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20007 [source]

A convenient preparation of 3-acetyl-5-methylisoxazole

JOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 4 2003
Ronald R. Sauers
Starting from 2,5-hexanedione (4), a one-pot preparation of 3-acetyl-5-methylisoxazole (1) is described. 3-Acetyl-5-methylisoxazole (1) is a useful compound for the preparation of 3-oxobutyronitrile (10) and for 3-vinyl-(5-methyl isoxazolyl) ketone (2). [source]

Efficient and convenient preparation of water-soluble fullerenol,

CHINESE JOURNAL OF CHEMISTRY, Issue 9 2004
Jian-Min Zhang
Abstract An efficient and convenient preparation of fullerenols was described. With polyethylene glycol (PEG) 400 as catalyst, fullerenols were conveniently synthesized via the direct reaction of fullerene with aqueous NaOH. By control of reaction conditions, either water-soluble C, fullerenol or water-insoluble C60 fullerenol could be obtained selectively. [source]