108946-34-5Relevant articles and documents
Silver-catalyzed efficient synthesis of vinylene carbonate derivatives from carbon dioxide
Ugajin, Rie,Kikuchi, Satoshi,Yamada, Tohru
supporting information, p. 1178 - 1180 (2014/05/20)
It was found that the silver salt and base was an efficient catalytic system for the reaction of the secondary propargylic alcohol with carbon dioxide to afford various corresponding vinylene carbonate derivatives in good to high yields under mild conditions. Georg Thieme Verlag Stuttgart New York.
Room temperature lewis base-catalyzed alumination of terminal alkynes
Zhou, Yuhan,Lecourt, Thomas,Micouin, Laurent
supporting information; experimental part, p. 2595 - 2598 (2010/01/19)
An efficient and mild access to mixed dimethylalkynylaluminum reagents has been developed via a direct Lewis base-catalyzed alumination of terminal alkynes by trimethylaluminum. The use of bis(trimethylsilyl)methylamine enables the metalation at room temp
On the Chemistry of Acetylenic Titanium Compounds
Krause, Norbert,Seebach, Dieter
, p. 1845 - 1852 (2007/10/02)
Solutions of acetylenic titanium compounds of the type R-CC-Ti(OiPr)3 (5) were prepared in the usual way, and their reactions with various electrophiles were studied.The addition to aldehydes takes place at low temperature; however, for ketones, long reaction times at 0 deg C are necessary.Therefore a complete differentiation between these two functional groups can be achieved.In contrast to alkyl titanium compounds, the alkinyl derivatives are more basic than the corresponding lithium compounds.The use of reagents 5 instead of lithium acetylides does not result in a striking improvement of the diastereoselectivity of addition to chiral aldehydes.The phenyl-substituted reagent (5, R = C6H5) reacts with styrene oxide 25 at the higher substituted carbon atom selectively with 59percent retention.
