Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Chandrashekar Ramarao"'
Autor:
Chandrashekar Ramarao, Ian Fleming
Publikováno v:
ChemInform. 30
The enol trifluoromethanesulfonates 4, 8, 12, 17 and 20 of tert-butyl β-ketodiesters and β-ketoesters can be hydrolysed to the corresponding carboxylic acids by dissolution in trifluoroacetic acid. The dicarboxylic acids undergo mild decarboxylativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aa270774beb32a271faf81c9be059bd
https://doi.org/10.1002/chin.199937062
https://doi.org/10.1002/chin.199937062
Publikováno v:
ChemInform. 33
The use of tetraalkylammonium salts or imidazolium ionic liquids in catalytic oxidations of alcohols with tetra-N-propylammonium perruthenate allows recovery and reuse of the oxidant; this concept may find application in the recovery of other homogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::384a965fb122fe491b9a397556792f5b
https://doi.org/10.1002/chin.200212077
https://doi.org/10.1002/chin.200212077
Autor:
Chandrashekar Ramarao, Ian Fleming
Publikováno v:
Organicbiomolecular chemistry. 2(10)
The enol trifluoromethanesulfonates 4, 8, 12, 17 and 20 of tert-butyl beta-ketodiesters and beta-ketoesters can be hydrolysed to the corresponding carboxylic acids by dissolution in trifluoroacetic acid. The dicarboxylic acids undergo mild decarboxyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ba101acad02b1300e8313df70671511
https://pubmed.ncbi.nlm.nih.gov/15136807
https://pubmed.ncbi.nlm.nih.gov/15136807
Autor:
Steven V. Ley, David Alan Pears, Jin-Quan Yu, Wuzong Zhou, Claire E. T. Mitchell, Chandrashekar Ramarao
Publikováno v:
ChemInform. 35
[reaction: see text] Pd nanoparticles (approximately 2 nm in size) microencapsulated in polyurea is an efficient and recyclable catalyst for reductive ring-opening hydrogenolysis of epoxides, using either HCOOH/Et(3)N or H(2) as a hydrogen donor.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa89533f8b5bf6ad7fde88a19db36a20
https://doi.org/10.1002/chin.200414124
https://doi.org/10.1002/chin.200414124
Publikováno v:
ChemInform. 35
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05eb16d5e49386564dc7ccf573790f38
https://doi.org/10.1002/chin.200408037
https://doi.org/10.1002/chin.200408037
Publikováno v:
Organicbiomolecular chemistry. 1(22)
R-5-Methylcyclohex-2-enone 1 reacts successively with the phenyldimethylsilylzincate reagent and acetaldehyde to give with regiocontrol the aldols 7, dehydration of which creates the E-exocyclic double bond of the alpha,beta-unsaturated ketone 2. Con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a2ea49deb0f4c3f5f244393cc25d3d5
https://pubmed.ncbi.nlm.nih.gov/14664388
https://pubmed.ncbi.nlm.nih.gov/14664388
Publikováno v:
Chemical communications (Cambridge, England). (6)
A robust and recyclable palladium catalyst [Pd0EnCat] has been prepared by ligand exchange of polyurea-encapsulated palladium(II) acetate with formic acid, resulting in deposition of Pd(0) in the support material; Pd0EnCat is shown to be a highly eff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::001c7ba1978dc0aa3dac9e774d1860d2
https://pubmed.ncbi.nlm.nih.gov/12703769
https://pubmed.ncbi.nlm.nih.gov/12703769
Publikováno v:
ResearcherID
Scopus-Elsevier
Scopus-Elsevier
Polyurea microcapsules containing palladium acetate have been used in a range of catalytic hydrogenation reactions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69e7104434d41032b2a801a3713ec56c
https://doi.org/10.1002/chin.200308052
https://doi.org/10.1002/chin.200308052
Autor:
Ian Malcolm Shirley, Chandrashekar Ramarao, Niels Østergaard, Stephen C. Smith, Ai-Lan Lee, Steven V. Ley
Publikováno v:
Organic letters. 5(2)
[reaction: see text] Osmium tetroxide has been microencapsulated in a polyurea matrix using an in situ interfacial polymerization approach. These microcapsules have been effectively used as recoverable and reusable catalysts in the dihydroxylation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee755d9bba7b3a58c9b41088d923b081
https://pubmed.ncbi.nlm.nih.gov/12529136
https://pubmed.ncbi.nlm.nih.gov/12529136
Autor:
Nathalie DeAlmeida, Ian Malcolm Shirley, Stephen C. Smith, Chandrashekar Ramarao, Steven V. Ley
Publikováno v:
Chemical communications (Cambridge, England). (10)
An interfacial polymerisation approach is adopted to encapsulate palladium(II) acetate and palladium nanoparticles in polyurea microcapsules for use in catalysis.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20034d29263f7e6932d2e4a6f7d24b77
https://pubmed.ncbi.nlm.nih.gov/12122700
https://pubmed.ncbi.nlm.nih.gov/12122700