A one-pot conversion of allyl alcohols into selenochroman derivatives was achieved by treatment with a phenyl trimethylsilyl selenide (TMSSePh)-AIBr3 reagent system.

Cucurbit[7]uril (CB[7]) encapsulates adamantyl and trimethylsilyl substituents of positively charged guests in dimethyl sulfoxide (DMSO). Unlike water or deuterium oxide, addition a selection alkali alkali-earth cations...

Christ ina Ergez inger , Frank Weller und Kurt Dehnicke* Fachbereich Chemie der Universität Marburg, Hans-Meerwein-Straße, D-3550 Marburg/Lahn Z. Naturforsch. 43b, 1621-1627 (1988); eingegangen am 18. August 1988 N,N'Bis-(trimethylsilyl)amidinato Complexes, Synthesis, IR Spectra. Crystal Structure The trichlorides of aluminium, gallium, and indium, as well as boron tribromide and tin tetrachlor...

Bis(trimethylsilyl)amide derivatives of the group 1 elements (Li, Na, K) are competent pre-catalysts for the dehydrocoupling of Me2NH·BH3 via the formation of intermediates containing [H3BNMe2BH2Me2N](-) anions.

Bleach oxidizes trimethylsilyl cyanide to generate an electrophilic cyanating reagent that readily reacts with an amine nucleophile. This oxidative N-cyanation reaction allows for the preparation of disubstituted cyanamides from amines without using highly toxic cyanogen halides.

The regioselective Stille cross-coupling reactions of 3-tri-n-butylstannyl-1-trimethylsilyl-1-propyne demonstrate isomerization following the initial transmetalation step resulting in allenyl palladium intermediates for reductive coupling to yield conjugated 1,1-disubstituted allenylsilanes.

Cyclic 1,2-thiocarbonates of a-D-xyloand a-D-ribo-furanoses were found to be excellent glycosyl donors in mild NISmediated nucleophilic substitution reactions, affording b-nucleosides with complete stereoselectivity and moderate to high yields after treatment with persilylated pyrimidinic bases. The nucleophile is believed to open the thiocarbonate ring at the anomeric position presumably via a...

The α-carbanion-stabilizing ability of the phenylthio and trimethylsilyl groups was compared based on the relative rate of the base-catalyzed Brook rearrangement of the β-substituted α-silylallylalcohol.