Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Philip M. Keehn"'
Publikováno v:
Tetrahedron Letters. 56:3240-3242
Synthesis of p - t -butylcalix[8]arene ( 4 ) was achieved in near quantitative yield by ‘7+1’ and ‘3+1’ convergent addition reactions with trifluoroacetic acid as catalyst. Other convergent additions examined also gave rise to 4 in lower than
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41708cb90f3f80679ce6ab43f648ed03
https://doi.org/10.1016/j.tetlet.2015.01.005
https://doi.org/10.1016/j.tetlet.2015.01.005
Publikováno v:
Tetrahedron Letters. 35:65-68
Treatment of 2,4-dimethoxybenzyl alcohol with trifluoroacetic acid (TFA, 5% in CHCl3) affords, in almost quantitative yield calix[4]resorcinarene octamethyl ether, which on demethylation and acetylation yields the derived octa-acetate.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7715396daaf62e6cc41580f983d24ceb
https://doi.org/10.1016/0040-4039(94)88163-4
https://doi.org/10.1016/0040-4039(94)88163-4
Publikováno v:
Organicbiomolecular chemistry. 9(23)
The action of trifluoroacetic acid (TFA) on 2,4,6-trimethoxybenzyl alcohol 3 affords the title tetrameric compound in high yield as a maroon TFA complex, 4; trituration of which with acetone gives the free, colorless, calix[4]phloroglucinarene (5) th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd6fe13b54a91552be65d9b1d70d477c
https://pubmed.ncbi.nlm.nih.gov/22006454
https://pubmed.ncbi.nlm.nih.gov/22006454
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::747b86f90faf4079f0dedd534f7d5359
https://doi.org/10.1002/chin.199250154
https://doi.org/10.1002/chin.199250154
Publikováno v:
ChemInform. 22
In order to improve the relatively low yield (ca. 35%) previously observed in the synthesis of tri-o-thymotide (TOT, 1) from o-thymotic acid (2)d, the cyclodehydration was studied using a variety of conditions. The low yield is due to the formation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bdbdc4fa64d7ffd62015cb9c961ee4a
https://doi.org/10.1002/chin.199147214
https://doi.org/10.1002/chin.199147214
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79b7f45da862d59a6b19f02b45dae1c2
https://doi.org/10.1002/chin.199217129
https://doi.org/10.1002/chin.199217129
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27fa414bde12cc9559cbe0f673ea676d
https://doi.org/10.1002/chin.199236138
https://doi.org/10.1002/chin.199236138
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eba4d3a17ef4e1956039cc4f55306615
https://doi.org/10.1002/chin.199229275
https://doi.org/10.1002/chin.199229275
Autor:
F. Frolow, Bernard S. Green, K. Vyas, J. T. Levy, Jallal Gnaim, Philip M. Keehn, Rina Arad-Yellin
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b00fa6169da51ca9e967bc352fcc6682
https://doi.org/10.1002/chin.199227198
https://doi.org/10.1002/chin.199227198