Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Osamu Yamabe"'
Autor:
Hiroshi Ikeda, Yuichi Kitamoto, Tetsutaro Hattori, Taizo Iwayama, Kenkichi Sakamoto, Sotaro Miyano, Osamu Yamabe, Koichi Natori
Publikováno v:
Chirality. 27:479-486
Two analogs of blestriarene C (4,4'-dimethoxy-1,1'-biphenanthrene-2,2',7,7'-tetraol) bearing no 7,7'-dihydroxy (3) and 4,4'-dimethoxy groups were prepared. Unlike blestriarene C (1), compounds and , as well as 1,1'-biphenanthrene-2,2'-diol (5), do no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d35a3ef9b3bd82bf711d0c30cae860f6
https://doi.org/10.1002/chir.22447
https://doi.org/10.1002/chir.22447
Autor:
Koichi, Natori, Taizo, Iwayama, Osamu, Yamabe, Yuichi, Kitamoto, Hiroshi, Ikeda, Kenkichi, Sakamoto, Tetsutaro, Hattori, Sotaro, Miyano
Publikováno v:
Chirality. 27(8)
Two analogs of blestriarene C (4,4'-dimethoxy-1,1'-biphenanthrene-2,2',7,7'-tetraol) bearing no 7,7'-dihydroxy (3) and 4,4'-dimethoxy groups were prepared. Unlike blestriarene C (1), compounds and , as well as 1,1'-biphenanthrene-2,2'-diol (5), do no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4f4cfc71db9a2f4412f562c1b27f7f92
https://pubmed.ncbi.nlm.nih.gov/25944278
https://pubmed.ncbi.nlm.nih.gov/25944278
Publikováno v:
Tetrahedron. 58:233-238
Treatment of 1-methoxy-2-nitronaphthalene with 1-naphthyl- and 2-methoxy-1-naphthylmagnesium bromide in diethyl ether–benzene at room temperature provides a facile entry to the corresponding 2-nitro-1,1′-binaphthyls in high yields. Induction of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e132abc45d5801dbf7b822f3a6255eae
https://doi.org/10.1016/s0040-4020(01)01143-7
https://doi.org/10.1016/s0040-4020(01)01143-7
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :783-788
The first enantioselective syntheses of highly oxygenated lobane diterpenes, (+)-lobatrienolide 4 and (+)-lobatrientriol 5, have been achieved, starting with (4R,5R)-1-acetoxy-4-isopropenyl-5-methyl-5-vinylcyclohex-1-ene 10b which itself has been pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b99efc75e5d2384b8866bee6bc8d9328
https://doi.org/10.1039/a809983i
https://doi.org/10.1039/a809983i
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :217-222
As part of a synthetic study on marine natural products, the enantioselective synthesis of (+)-fuscol 4, a representative lobane diterpene, has been achieved in 10 steps and ca. 20% overall yield from (4R,5R)-1-acetoxy-4-isopropenyl-5-methyl-5-vinylc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::546a88da0ebf5681889215d8f5726408
https://doi.org/10.1039/a706162e
https://doi.org/10.1039/a706162e
Publikováno v:
Chirality. 10:619-626
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04d102724554e6af74952cb380e002df
https://doi.org/10.1002/(sici)1520-636x(1998)10:7<619::aid-chir9>3.0.co
https://doi.org/10.1002/(sici)1520-636x(1998)10:7<619::aid-chir9>3.0.co
Publikováno v:
ChemInform. 29
As part of a synthetic study on marine natural products, the enantioselective synthesis of (+)-fuscol 4, a representative lobane diterpene, has been achieved in 10 steps and ca. 20% overall yield from (4R,5R)-1-acetoxy-4-isopropenyl-5-methyl-5-vinylc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15830913fa3500f15fb54056d5355372
https://doi.org/10.1002/chin.199820225
https://doi.org/10.1002/chin.199820225
Publikováno v:
ChemInform. 30
The first enantioselective syntheses of highly oxygenated lobane diterpenes, (+)-lobatrienolide 4 and (+)-lobatrientriol 5, have been achieved, starting with (4R,5R)-1-acetoxy-4-isopropenyl-5-methyl-5-vinylcyclohex-1-ene 10b which itself has been pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bb07b31800f767ab5390a27d7e35440
https://doi.org/10.1002/chin.199934207
https://doi.org/10.1002/chin.199934207
Autor:
Wataru Kawai, Naoya Morohashi, Tetsutaro Hattori, Yuhi Shimazumi, Hitoshi Goto, Osamu Yamabe, Sotaro Miyano
Publikováno v:
The Journal of organic chemistry. 68(6)
A naturally occurring 1,1'-biphenanthrene, blestriarene C (1), was prepared in 13 steps and 30% overall yield. The key steps are the ester-mediated nucleophilic aromatic substitution on 2,6-di-tert-butyl-4-methoxyphenyl 5-isopropoxy-2-methoxybenzoate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d6cae22899754f9227d931b9a0c6094
https://pubmed.ncbi.nlm.nih.gov/12636367
https://pubmed.ncbi.nlm.nih.gov/12636367
Publikováno v:
Chemical communications (Cambridge, England). (19)
A naturally occurring 1,1′-biphenanthrene, blestriarene C, was prepared and its absolute stereochemistry was determined to be Sa-(−) by an empirical method, during which the compound was found to undergo rapid photoracemization even under ambient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::009e1c034e2890b4170956c9760a5963
https://pubmed.ncbi.nlm.nih.gov/12397993
https://pubmed.ncbi.nlm.nih.gov/12397993