Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kiohisa Tokuda"'
Publikováno v:
Carbohydrate Research. 281:129-142
The conformationally flexible title compounds were prepared and subjected to reduction with sodium borodeuteride. Deuteride ion attacks exclusively from the side opposite of the anomeric methoxyl group. However, the stereoselectivity of a similar red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f6a14b16f35b87315a3686c510248a8
https://doi.org/10.1016/0008-6215(95)00341-x
https://doi.org/10.1016/0008-6215(95)00341-x
Publikováno v:
Carbohydrate Research. 268:107-114
Treatment of 4,6-diacetate 3 with tert -butyl hydroperoxide gave the S N 2′ product 6 in high yield, the formation of which presumeably involves an intermediary nitronate. The thus prepared 6 reacted with nucleophiles to afford 2,3-anhydro derivati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c9a9ec3980aa495da4621d894a1cc4d
https://doi.org/10.1016/0008-6215(94)00318-a
https://doi.org/10.1016/0008-6215(94)00318-a
Publikováno v:
Carbohydrate Research. 267:217-226
Reactions of the title compounds with several nucelophiles suggested that the ring oxygen atom (O-5) accelerated the reactivity of the nitro alkene moiety, but scarcely affected the stereoselectivity of the nucleophilic attack.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89bb51747b3a14d06c5a6065355d75e4
https://doi.org/10.1016/0008-6215(94)00304-x
https://doi.org/10.1016/0008-6215(94)00304-x
Publikováno v:
ChemInform. 26
Reactions of the title compounds with several nucelophiles suggested that the ring oxygen atom (O-5) accelerated the reactivity of the nitro alkene moiety, but scarcely affected the stereoselectivity of the nucleophilic attack.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5723ed4ba2a693e3d4ef12dccdb4949f
https://doi.org/10.1002/chin.199529269
https://doi.org/10.1002/chin.199529269
Publikováno v:
ChemInform. 26
Treatment of 4,6-diacetate 3 with tert -butyl hydroperoxide gave the S N 2′ product 6 in high yield, the formation of which presumeably involves an intermediary nitronate. The thus prepared 6 reacted with nucleophiles to afford 2,3-anhydro derivati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c2bdcad77123772aee9f7af199959dd
https://doi.org/10.1002/chin.199528238
https://doi.org/10.1002/chin.199528238
Publikováno v:
ChemInform. 27
The conformationally flexible title compounds were prepared and subjected to reduction with sodium borodeuteride. Deuteride ion attacks exclusively from the side opposite of the anomeric methoxyl group. However, the stereoselectivity of a similar red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40685f3b04d97d8dfd1fff25ab531bdc
https://doi.org/10.1002/chin.199623239
https://doi.org/10.1002/chin.199623239
Publikováno v:
ChemInform. 31
Dimethyl malonate and dibenzoylmethane attacked the C-2 position of the title 3-nitro-2-enopyranosides from the side opposite the anomeric methoxyl group to afford the 3-enopyranosides (SN2′ products). In the case of 2,4-pentanedione and ethyl acet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49fe8f1184ccaf08232ebc3bf6150a77
https://doi.org/10.1002/chin.200047194
https://doi.org/10.1002/chin.200047194
Publikováno v:
Carbohydrate research. 327(4)
Dimethyl malonate and dibenzoylmethane attacked the C-2 position of the title 3-nitro-2-enopyranosides from the side opposite the anomeric methoxyl group to afford the 3-enopyranosides (SN2′ products). In the case of 2,4-pentanedione and ethyl acet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e14a226f2345a9f5e71139dbb477d1e
https://pubmed.ncbi.nlm.nih.gov/10990034
https://pubmed.ncbi.nlm.nih.gov/10990034