Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Michael D. Woodrow"'
Publikováno v:
Synlett. 2009:798-802
An efficient 1-pot procedure for the Zn-mediated redn. of nitro arenes in the presence of chloroformates leading to the corresponding N,O-bisprotected hydroxylamine is described. Reactions proceed smoothly under ambient conditions in THF-water mixts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::198ef90d616a81ddedde008550e88394
https://doi.org/10.1055/s-0028-1087943
https://doi.org/10.1055/s-0028-1087943
Publikováno v:
Organic Letters. 11:233-236
The bis-pyrazole phosphine ligand BippyPhos is effective for the palladium-catalyzed cross-coupling of hydroxylamines with aryl bromides, chlorides, and iodides. Reactions proceed smoothly at 80 degrees C in toluene in the presence of Cs(2)CO(3) to g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f70d00b5fee4d7d7fdef42d69ebd689a
https://doi.org/10.1021/ol8025022
https://doi.org/10.1021/ol8025022
Publikováno v:
European Journal of Organic Chemistry. 2008:5135-5143
The rearrangement of a series of N,O-difunctionalized N-arylhydroxylamines to generate protected 2-aminophenols has been investigated. N-Boc-N-aryl-O-acylhydroxylamines are stable, isolable compds. which rearrange smoothly at temps. between 110 and 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a460b9927907a2cbdde5eaf80a85fd62
https://doi.org/10.1002/ejoc.200800672
https://doi.org/10.1002/ejoc.200800672
Publikováno v:
Organic Letters. 10:797-800
An efficient method for the copper-catalyzed N-arylation of hydroxylamines with aryl iodides is described. A variety of N- and O-functionalized hydroxylamines were transformed in good to excellent yield with a broad range of aryl coupling partners. M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91eb04ec69f035f7e3759e8cd18d5041
https://doi.org/10.1021/ol7029273
https://doi.org/10.1021/ol7029273
Publikováno v:
Tetrahedron Letters. 39:6037-6040
The aplyronine C1C11 subunit 4, containing 4 stereocentres and the (E,E)-diene system, was prepared in 7 steps from ethyl ketone (R)-8 using a boron-mediated anti aldol reaction. The corresponding C15C27 subunit 5, containing 6 stereogenic cent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd77c49a8250c55d1603d85094b92429
https://doi.org/10.1016/s0040-4039(98)01191-5
https://doi.org/10.1016/s0040-4039(98)01191-5
Publikováno v:
ChemInform. 42
Treatment of various hydroxylamines with either sulfonyl chlorides or Tf2O under the conditions shown results in formation of rearranged 2-aminophenol derivatives.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ef5b1ab497420506a4ae14726df3823
https://doi.org/10.1002/chin.201104077
https://doi.org/10.1002/chin.201104077
Reaction of substituted N-aryl hydroxylamines with methanesulfonyl chloride, p-toluenesulfonyl chloride, or trifluoromethanesulfonic anhydride under basic conditions leads to the rearranged 2-aminophenols (45-94%). The overall reaction sequence can b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68219de08b8675af372999af2ca4f959
https://strathprints.strath.ac.uk/33070/2/2_aminophenols.pdf
https://strathprints.strath.ac.uk/33070/2/2_aminophenols.pdf
Publikováno v:
ChemInform. 41
N-Aryl hydroxylamines are aminated at the ortho-position without a rigorous exclusion of either moisture or air.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e8a35ecd5d9d0a2c33c88b4ce9bb12a
https://doi.org/10.1002/chin.201033067
https://doi.org/10.1002/chin.201033067
Publikováno v:
ChemInform. 29
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::327bb074043377d6a65e211e557ee0a5
https://doi.org/10.1002/chin.199844261
https://doi.org/10.1002/chin.199844261
Publikováno v:
ChemInform. 29
The C1C27 macrolide 2, which contains 11 stereocentres and 4 double bonds, was constructed by an efficient 3-component coupling followed by a macrolactonisation/isomerisation sequence. Key steps were the alkylation of the dianion of phosphonate 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5707e24315e9cea33416b5a363abdbc
https://doi.org/10.1002/chin.199844262
https://doi.org/10.1002/chin.199844262