Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Tanasri Bunlaksananusorn"'
Autor:
Tanasri Bunlaksananusorn, Eberhardt Herdtweck, Florian Rampf, Lars Rodefeld, Wolfgang A. Herrmann, Stephan D. Hoffmann, Denys Baskakov
Publikováno v:
Organometallics. 25:2449-2456
New and reliable procedures for the preparation of both enantiomers of 2,2‘-bipiperidine have been developed. Chiral imidazolinium salts derived from 2,2‘-bipiperidine and partially reduced biisoquinoline were prepared in high yields. Rhodium and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57c88dfc63475971fd7686dba919e3c0
https://doi.org/10.1021/om060098b
https://doi.org/10.1021/om060098b
Publikováno v:
Synlett. :2240-2242
Ir-catalyzed asymmetric hydroboration of bicyclic hydrazine 4 in the presence of chiral ligand la, leads to bicyclic alcohol 5 after oxidative workup in good yield (76%) and moderate enantioselectivity (71 % ee).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::309ec795ad4ee142baa258b2561dd0e6
https://doi.org/10.1055/s-2003-42067
https://doi.org/10.1055/s-2003-42067
Autor:
Paul Knochel, Tanasri Bunlaksananusorn
Publikováno v:
Tetrahedron Letters. 43:5817-5819
The use of t -BuOK in DMSO allows a smooth addition of Ph 2 PH, Cy 2 PH and Ph 2 P(O)H to various functionalized alkenes leading to polyfunctional phosphines in good yields. This method has been used to prepare precursors for P,P- and P,N-ligands.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e714d92571432353682367386f222b75
https://doi.org/10.1016/s0040-4039(02)01177-2
https://doi.org/10.1016/s0040-4039(02)01177-2
Publikováno v:
ChemInform. 31
A convenient and general synthetic method for spiro[4.n]alk-2-ene-1,6-diones and spiro[5.n]alk-2-ene-1,7-diones, which involves the intramolecular acylation of an α-sulfinyl carbanion, is described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::585122d26a747173014619508fcd052b
https://doi.org/10.1002/chin.200021053
https://doi.org/10.1002/chin.200021053
Autor:
Paul Knochel, Jesús A. Varela, Lars O. Bromm, Andreas Boudier, Frederic Lhermitte, Christopher Koradin, Alain Louis Rodriguez, Tanasri Bunlaksananusorn, Hamid Laaziri, Eike Hupe
Publikováno v:
ChemInform. 32
Main-group organometallics are useful intermediates for the chemoselective and diastereoselective C-C bond formation. The boron-zinc exchange is a unique way for preparing chiral secondary alkylzinc reagents which are configurationally stable over a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b864d9bc183a06b298c28291107373a
https://doi.org/10.1002/chin.200123277
https://doi.org/10.1002/chin.200123277
Publikováno v:
ChemInform. 32
Catalytic amounts of t-BuOK in DMSO allow the smooth addition of nitriles and in some cases of ketones to vinylsilanes, phosphines or thio derivatives in good yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbf5a53a80718ed395593d93a6779f71
https://doi.org/10.1002/chin.200133044
https://doi.org/10.1002/chin.200133044
Autor:
Tanasri Bunlaksananusorn, Paul Knochel
Publikováno v:
ChemInform. 33
The use of t -BuOK in DMSO allows a smooth addition of Ph 2 PH, Cy 2 PH and Ph 2 P(O)H to various functionalized alkenes leading to polyfunctional phosphines in good yields. This method has been used to prepare precursors for P,P- and P,N-ligands.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1001cd73cf35ccbbea06476c3952beba
https://doi.org/10.1002/chin.200247163
https://doi.org/10.1002/chin.200247163
Publikováno v:
ChemInform. 38
Reaction of nitrones with terminal alkynes occurs in the presence of 1 equiv of trimethylaluminum and leads to the corresponding propargylic hydroxylamines in yields ranging from 49 to 90%.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8471acd5f721df985079607e9ec74ff7
https://doi.org/10.1002/chin.200720062
https://doi.org/10.1002/chin.200720062
Publikováno v:
ChemInform. 37
We report a facile one-pot synthesis of chiral β-amino esters via direct reductive amination of (3-keto esters with ammonium acetate (NH 4 OAC) and H 2 in the presence of chiral Ru-ClMeOBIPHEP catalysts using 2,'2,2-trifluoroethanol (TFE) as a solve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b32f44391a5786e304c167a9a6b57f09
https://doi.org/10.1002/chin.200607093
https://doi.org/10.1002/chin.200607093
Autor:
Tanasri Bunlaksananusorn, Paul Knochel
Publikováno v:
The Journal of organic chemistry. 69(14)
A novel synthesis of effective chiral P,N- and P,P-ligands has been developed by using a t-BuOK-mediated hydrophosphination of chiral alkenylpyridines and alkenylphosphine oxides. Ir complexes of chiral P,N-ligands 1 and 3 gave high enantioselectivit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11219a0040d248c4ebe07c58f5f0a81b
https://pubmed.ncbi.nlm.nih.gov/15230580
https://pubmed.ncbi.nlm.nih.gov/15230580