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RISNovel and Highly Efficient Protection of Aliphatic Alcohols and Phenols withHexamethyldisilazane in the Presence of La(NO3)3·6 H2O
Aliphatic alcohols and phenols are protected with hexamethyldisilazane in the
presence of lanthanum nitrate hexahydrate (La(NO3)3·6H2O) in excellent yields at
room temperature.
Highly selective conversion of 1◦ and 2◦ tetrahydropyranyethers to thiocyanates and 3◦ ones to isothiocyanates usingltriphenylphosphine/diethyl azodicarboxylate/NH4SCN
An efficient and selective method is described for the conversion of 1◦ and 2◦ tetrahydropyranyl
(THP) ethers to their corresponding thiocyanates and 3◦ ones to isothiocyanates using
a triphenylphosphine/diethyl ...
N,N’,N’’,N’’’-tetramethyltetra-2,3-pyridinoporphyrazinato copper(II) as a new catalyst in solvent-free tetrahydrotetrahydropyranylation(THP) of alcohols and phenols
Alcohols and phenols are tetrahydropyranylated in the presence of N,N\\',Nʼʼ,Nʼʼʼ-
tetramethyltetra-2,3-pyridinoporphyrazinato copper(II) in good to excellent yields under solvent-free
conditions
A New and Convenient Method of Generating Alkyl Isocyanates fromAlcohols, Thiols and Trimethylsilyl Ethers Using Triphenylphosphine/2,3-Dichloro-5,6-dicyanobenzoquinone/Bu4NOCN
Alkyl isocyanates are prepared in good to excellent
yields by treatment of alcohols, thiols and trimethylsilyl ethers with
triphenylphosphine/2,3-dichloro-5,6-dicyanobenzoquinone/
Bu4NOCN in acetonitrile. ...
A New and Convenient Method of Generating Alkyl Cyanides from Alcoholsand Thiols Using 2,4,6-Trichloro[1,3,5]Triazine/n-Bu4NCN
Alkyl cyanides are prepared in good to excellent yields (average yield 93% )by treatment of alcohols
and thiols with 2,4,6-trichloro[1,3,5]triazine/n-Bu4NCN in refluxing acetonitrile. This method is highly
selective ...
Conversion of Alcohols, Thiols, and Trimethysilyl Ethers to AlkyCyanides Using Triphenylphosphine
Triphenylphosphine and 2,3-dichloro-5,6-dicyanobenzoquinone afford an adduct, which in the
presence of n-Bu4NCN converts alcohols, thiols, and trimethylsilyl ethers into their corresponding
alkyl cyanides in ...
An Efficient Method for the Protection of Alcohols and Phenols by UsingHexamethyldisilazane in the Presence of Cupric Sulfate Pentahydrate underNeutral Reaction Conditions
Alcohols and phenols are protected with hexamethyldisilazane
in the presence of cupric sulfate pentahydrate in good to excellent
yields in acetonitrile. The method is highly selective for the
conversion ...
Conversion of Alcohols, Thiols, Carboxylic Acids, Trimethylsilyl Ethersand Carboxylates to Thiocyanates with Triphenylphosphine/Diethylazodicarboxylate/H4NSCN,
A novel and highly selective method is described using
triphenylphosphine/diethylazodicarboxylate (DEAD)/NH4SCN for
the conversion of alcohols, thiols, carboxylic acids, silyl ethers, and
silyl ...
Triphenylphosphine/2,3-Dichloro-5,6dicyanobenzoquinone in the Presence of n-Bu4NN3 Is a Useful System for Efficient Conversion of Tetrahydropyranyl (THP) Ethers to Their Corresponding Alkyl Azides -
Triphenylphosphine/2,3-dichloro-5,6-dicyanobenzoquinone/tetrabutylammonium
azide was used as an efficient system in conversion of tetrahydropyranyl ethers to
corresponding alkyl azides.
A New and Efficient Method for the Protectionof Alcohols and Phenols by Using Hexamethyldisilazane in the Presence of Anhydrous Ferric Chloride under MildReaction Conditions
Alcohols and phenols are protected with hexamethyldisilazane in the presence of
anhydrous ferric chloride in good to excellent yields in acetonitrile. This method is
highly selective for the conversion of ...