Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Rakesh R. Harji"'
The partial reduction of a series of heterocycles in THF is described. By adding amine 3 as a proton source and naphthalene as an electron carrier, we were able to produce reductively alkylated pyrrolines and dihydrofurans in moderate to good yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5debc05afa7b8644b5ff2bdba62e45ad
https://doi.org/10.1016/s0040-4039(99)02315-1
https://doi.org/10.1016/s0040-4039(99)02315-1
Publikováno v:
ChemInform. 29
The Birch reduction of electron-deficient 3-substituted pyrroles is described. Use of a reductive alkylation procedure involving sodium metal in liquid ammonia gave good yields of 4-alkyl-2-pyrrolines. The identity of these products was proven by an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::281a1fa55fbed9266d41dc43f0e28ec9
https://doi.org/10.1002/chin.199832148
https://doi.org/10.1002/chin.199832148
Publikováno v:
ChemInform. 30
The preparation and Birch reduction of a 1,3,4-tri-substituted pyrrole is described: the heterocycle is loaded with electron-withdrawing groups and undergoes a double reductive alkylation reaction to yield cis-3,4-disubstituted pyrrolidines.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a8f39b844e090a55904f1e4fd7acc8c
https://doi.org/10.1002/chin.199919040
https://doi.org/10.1002/chin.199919040
Publikováno v:
ChemInform. 31
The partial reduction of a series of heterocycles in THF is described. By adding amine 3 as a proton source and naphthalene as an electron carrier, we were able to produce reductively alkylated pyrrolines and dihydrofurans in moderate to good yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce276f3e3c83d3bcf6a9b5e641afef7e
https://doi.org/10.1002/chin.200021060
https://doi.org/10.1002/chin.200021060
Publikováno v:
TETRAHEDRON LETTERS. 41(9)
Lithium in ammonia promotes the stereoselective reduction of 2,5- disubstituted pyrroles: such reactions proceed with good levels of stereoselectivity, producing the trans-isomer. The stereochemistry of one of the reduced compounds was proven by X-ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e8334e332bc90d4ac4cacbde9993c0c
http://ora.ox.ac.uk/objects/uuid:34657239-e9de-4e3e-83af-d5ff835fcffa
http://ora.ox.ac.uk/objects/uuid:34657239-e9de-4e3e-83af-d5ff835fcffa
Publikováno v:
TETRAHEDRON LETTERS. 39(19)
The Birch reduction of electron-deficient 3-substituted pyrroles is described. Use of a reductive alkylation procedure involving sodium metal in liquid ammonia gave good yields of 4-alkyl-2-pyrrolines. The identity of these products was proven by an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1237a9c4fc1538a74b8eab17cdf1f8fa
http://ora.ox.ac.uk/objects/uuid:fb8b6cb1-1458-4af0-9bda-0d4306a91799
http://ora.ox.ac.uk/objects/uuid:fb8b6cb1-1458-4af0-9bda-0d4306a91799
Publikováno v:
Chemical Communications. :141-142
The preparation and Birch reduction of a 1,3,4-tri-substituted pyrrole is described: the heterocycle is loaded with electron-withdrawing groups and undergoes a double reductive alkylation reaction to yield cis-3,4-disubstituted pyrrolidines.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d4b1b19a53988d9d3c3dd7a7ca05bf9
https://doi.org/10.1039/a809193e
https://doi.org/10.1039/a809193e