TaCl5-silicagel and TaCl5 as new Lewis acid systems for selective tetrahydropyranylation of alcohols and thioacetalisation, trimerisation and aldolisation of aldehydes.-Reference-Cited by-同舟云学术

TaCl5-silicagel and TaCl5 as new Lewis acid systems for selective tetrahydropyranylation of alcohols and thioacetalisation, trimerisation and aldolisation of aldehydes.

Published:1997-11 Issue:44 Volume:53 Page:14997-15004
ISSN:0040-4020
Container-title:Tetrahedron
language:en
Short-container-title:Tetrahedron

Author:

Chandrasekhar S.,Takhi Mohamed,Ravindra Reddy Y.,Mohapatra Suchismita,Rama Rao C.,Venkatram Reddy K.

Publisher

Elsevier BV

Subject

Organic Chemistry,Drug Discovery,Biochemistry

Reference27 articles.

1. The first practical niobium(III) reagent in organic synthesis. A convenient route to 2-amino alcohols via the coupling of imines with aldehydes or ketones promoted by NbCl3(DME)

2. A regioselective synthesis of 2,3-disubstituted-1-naphthols. The coupling of alkynes with 1,2-aryldialdehydes promoted by NbCl3(DME)

3. Regioselectivity in the reaction of tantalum-unsymmetrical acetylene complexes with carbonyl compounds. Stereoselective preparation of 1-alkenyl sulfides, .alpha.,.beta.-unsaturated esters, and amides

4. Selective reduction of alkynes to (Z)-alkenes via niobium- or tantalum-alkyne complexes

5. Tantalum-alkyne complexes as synthetic intermediates. Stereoselective preparation of trisubstituted allylic alcohols from acetylenes and aldehydes

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