Chromium Aminocarbene Research Articles

ChemInform Abstract: Synthesis of Dipeptides by the Photolytic Coupling of Chromium Aminocarbene Complexes with α‐Amino Acid Esters. Part 2. Side Chain Functionalized and α,α‐Disubstituted α‐Amino Acid Esters and N‐Methyl‐ and N‐Methyl‐α,α‐dialkyl‐α‐ amino Acid Esters.

AbstractChemInform 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.

ChemInform Abstract: Synthesis of Optically Active 4‐Substituted 2‐Aminobutyrolactones and Homoserines by Combined Aldol/Photocyclization Reactions of Chromium Aminocarbene Complexes.

AbstractChemInform 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.

Synthesis of Dipeptides by the Photolytic Coupling of Chromium Aminocarbene Complexes with .alpha.-Amino Acid Esters. 2. Side Chain Functionalized and .alpha.,.alpha.-Disubstituted .alpha.-Amino Acid Esters and N-Methyl- and N-Methyl-.alpha.,.alpha.-dialkyl-.alpha.-amino Acid Esters

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of Dipeptides by the Photolytic Coupling of Chromium Aminocarbene Complexes with .alpha.-Amino Acid Esters. 2. Side Chain Functionalized and .alpha.,.alpha.-Disubstituted .alpha.-Amino Acid Esters and N-Methyl- and N-Methyl-.alpha.,.alpha.-dialkyl-.alpha.-amino Acid EstersCatherine Dubuisson, Yoshiya Fukumoto, and Louis S. HegedusCite this: J. Am. Chem. Soc. 1995, 117, 13, 3697–3704Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April 1995https://doi.org/10.1021/ja00118a006RIGHTS & PERMISSIONSArticle Views1278Altmetric-Citations33LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (971 KB) Get e-Alerts Get e-Alerts

Synthesis of Optically Active 4-Substituted 2-Aminobutyrolactones and Homoserines by Combined Aldol/Photocyclization Reactions of Chromium Aminocarbene Complexes

Synthesis of Optically Active 4-Substituted 2-Aminobutyrolactones and Homoserines by Combined Aldol/Photocyclization Reactions of Chromium Aminocarbene Complexes

ChemInform Abstract: Synthesis of Optically Active Amino Azapenams by the Photolytic Reaction of Chromium Aminocarbene Complexes with N‐Protected Imidazolines.

AbstractChemInform 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.

Synthesis of optically active amino azapenams by the photolytic reaction of chromium aminocarbene complexes with N-protected imidazolines

Photolysis of optically active aminocarbene chromium complexes with N-protected imidazolines produced α-amino-N-protected azapenams in good yield and with high diastereoselectivity. Removal of the protecting group resulted in cleaving of the β-lactam to give N-acylimidazolines.

Chromium aminocarbene complexes in organic synthesis

The synthesis, the physical and spectroscopic properties, and the thermal and photochemical reactions of chromium aminocarbene complexes are reviewed, with an emphasis on the authors' research in the area.

ChemInform Abstract: Synthesis of α‐Aminocyclobutanones by the Photolytic Reaction of Chromium Aminocarbene Complexes with Olefins.

AbstractChemInform 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.

ChemInform Abstract: Photolytic Reactions of Chromium Aminocarbene Complexes. Conversion of Amides to α‐Amino Acids.

AbstractA variety of tertiary amides such as (I) are converted to chromium complexes such as (III), which undergo photolysis in an alcohol solvent to give the α‐amino esters (VI).

Photolytic reactions of chromium aminocarbene complexes. Conversion of amides to .alpha.-amino acids

A variety of tertiary amides was converted to chromium aminocarbene complexes by reaction with Na 2 Cr(CO) 5 and trimethylsilyl chloride. Photolysis of these carbene complexes in methanol or tert-butyl alcohol solvent produced α-amino esters in good to excellent yield. Aminocarbene complexes containing chiral oxazolidine groups were synthesized and photolyzed in alcohol to produce chiral α-amino esters in 50-93% de

Chromium carbene complexes in the synthesis of molecules of biological interest

Abstract

Reactivity of N-disubstituted aminocarbene complexes of chromium: nitrogen to carbon migration of the benzyl and allyl groups following alkyne insertions

Chromium aminocarbene complexes (CO) 5CrC(CH 3)N(CH 2Ph)(CH 3) ( 3), (CO) 5CrC(H)N(CH 2Ph)(CH 3) ( 5) and (CO) 5CrC(H)N(CH 2CHCH 2)(CH 3) ( 7) react with diphenylacetylene in boiling benzene to give, after insertions of the alkyne and CO and migration of the benzyl or the allyl group from nitrogen to carbon, substituted 2- and 3-pyrrolinones ( 10–15). The structures of (CO) 5-CrC(CH 3)N(CH 2Ph)CH 3 ( 3 Z) ( R 0.031 R w 0.030) and of the chromium tricarbonyl complex of the pyrrolinone 10, (CO) 3Cr (C 24H 23ON) ( 9) ( R 0.034 R w 0.035) were determined by the X-ray diffraction.

Thermal reactions of chromium aminocarbene complexes with alkynes. Synthesis of bicyclo[3.1.0]lactams

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal reactions of chromium aminocarbene complexes with alkynes. Synthesis of bicyclo[3.1.0]lactamsLouis S. Hegedus and David B. Miller Jr.Cite this: J. Org. Chem. 1989, 54, 6, 1241–1244Publication Date (Print):March 1, 1989Publication History Published online1 May 2002Published inissue 1 March 1989https://doi.org/10.1021/jo00267a005RIGHTS & PERMISSIONSArticle Views140Altmetric-Citations22LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (519 KB) Get e-Alerts Get e-Alerts