Stereospecific Hydroxylation of Allylic Alcohols
نویسندگان
چکیده
منابع مشابه
Palladium-catalyzed stereospecific cross-coupling of enantioenriched allylic alcohols with boronic acids.
In the presence of 2.5 mol% Pd2(dba)3-TMEDA (1 : 4), a range of enantioenriched allylic alcohols smoothly coupled with boronic acids in a highly regioselective fashion with inversion of configuration to afford structurally diverse alkenes in good yields with perfect retention of ee.
متن کاملStereospecific debenzylative cycloetherification of carbohydrate-derived allylic alcohols, ethers and esters to form vinyl C-furanosides.
Benzyl ether protected polyhydroxylated alkene compounds containing allylic alcohol, ether or ester functionality undergo a stereospecific cyclisation reaction upon treatment with TFA-acetonitrile-toluene with inversion of configuration at the allylic position and loss of a benzyl ether to give tetrahydrofurans.
متن کاملCatalytic enantioselective bromoamination of allylic alcohols.
An enantioselective bromoamination of allylic alcohols has been developed for the first time using a newly designed cinchona-derived thiourea as the catalyst and N,N-dibromo-4-nitrobenzenesulfonamide as a bromine and amine source.
متن کاملCatalytic enantioselective dibromination of allylic alcohols.
A new dibromination reaction involving the combination of dibromomalonate as the bromonium source and a titanium bromide species as the bromide source has been developed. Enantioselective catalysis has been achieved through apparent ligand acceleration by a tartaric acid-derived diol.
متن کاملCatalytic stereospecific alkylation of malononitriles with enantioenriched primary allylic amines.
An unprecedented alkylation reaction of malononitriles with enantioenriched primary allylic amines has been developed in a stereospecific manner through palladium-catalyzed sp(3) C-N bond cleavage without additives at room temperature.
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1963
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.84.4_351