Cucurbituril assemblies, polyamine structures capable of binding thereto, affinity pairs of cucurbituril assemblies and such polyamine structures and methods utilizing same are disclosed.
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Page/Page column 64-65
(2010/02/11)
Silanol-molybdenum hexacarbonyl as a new efficient catalyst for metathesis of functionalised alkynes under microwave irradiation
The catalytic mixture based on Mo(CO)6 was re-examined in the metathesis of 4-methoxytolan. Silanols (4) or (5) were found to be very active as co-catalysts. The metathesis of functional alkynes was convenient and rapidly achieved in octane as solvent under microwave irradiation in a resonance cavity.
Villemin, Didier,Héroux, Michael,Blot, Virginie
p. 3701 - 3703
(2007/10/03)
Elimination Instead of Rearrangement in Sulfur-Containing C12 Rings
Syntheses of dithiacyclotetradecadiyne 13 and -diene 26 as well as thiacyclotridecatriene 36 are reported.Stevens rearrangement and elimination of sulfur from the methyl sulfonium salts 20 and 37 in order to obtain 1,4,7,10-cyclododecatetraene (1) or dienediyne 2 have not been successful; instead, only the ring-opened methyl thioethers 23 and 39 have been isolated.
Brudermueller, Martin,Musso, Hans,Wagner, Alfred
p. 2239 - 2244
(2007/10/02)
Neue Retro-En-Reaktionen von β-Hydroxyacetylenen
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Hopf, Henning,Kirsch, Reinhard
p. 796 - 797
(2007/10/02)
HOMOGENEOUS METATHESIS OF FUNCTIONALISED ACETYLENES
The first examples of functionalised acetylenes metathesis are described: (1) using molybdenum carbonyl-phenol complexes gave the expected tolane (2) and disubstituted acetylene (3).
Villemin, Didier,Cadiot, Paul
p. 5139 - 5140
(2007/10/02)
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