TechnicalNotess

1.Catalyst promoting the addition of nucleophiles to allenamides.

2.Gold- and Bronsted acid-catalyzed cycloisomerization of 1.8-diynyl vinyl acetates to bicycle2.2.1hept-2-en-7-ones

3.Catalyst used for the synthesis of spiropiperidine-3.3'-oxindoles.

4.Catalyst used in the gold(1)-catalyzed Rautenstrauch rearrangement.

5.Gold-catalyzed T-directed regioselective cyclization of bis(o-alkynyl benzyl alcohols): rapid excess to dihydroisobenzofuran

derivatives.

6.Gold compound used in acid-catalyzed cycloisomerization - synthesis of diverse nitrogen-containing spiro heterocycles.

7.Gold catalyst used in the domino synthesis of functionalized benzofurans and tetracyclic isochromans via formal

carboalkoxylation.