594-19-4Relevant articles and documents
Kamienski,Esmay
, p. 1807 (1960)
Method for producing, via organometallic compounds, organic intermediate products
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Page/Page column 4, (2008/06/13)
The present invention provides a process for preparing aryllithium compounds by reacting haloaliphatics with lithium metal to form a lithium alkyl and reacting the lithium alkyl with aromatic halogen compounds of formula (III) in a halogen-metal exchange reaction to form the corresponding lithium aromatics of formula (IV).
Fluorous phosphines and process for their preparation
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, (2008/06/13)
A fluorous phosphine wherein the phosphor is coupled to at least one aryl or alkyl moiety, to which moiety a fluorous tail is coupled, wherein a spacer group, containing a non-carbon atom, is positioned between the aryl or alkyl moiety and the fluorous tail, a process for the preparation of said phosphines, metalcomplexes, catalysts and catalyst compounds therefrom and their use in catalysis.
ASYMMETRIC OXIDATION OF SULFIDES MEDIATED BY CHIRAL TITANIUM COMPLEXES: MECHANISTIC AND SYNTHETIC ASPECTS
Zhao, S. H.,Samuel, O.,Kagan, H. B.
, p. 5135 - 5144 (2007/10/02)
Asymmetric oxidation of sulfides by hydroperoxides mediated by chiral titanium complexes was further developed.The effect of water was discussed as well as steric and electronic factors of aryl groups in aryl-S-alkyl oxidation.When aryl is replaced by 1-alkyne, the sulfoxude is still obtained with hihg ee.The enantioselectivity of oxidation is enhanced by using cumene hydroperoxide instead of t-butyl hydroperoxide (up to 96percent).The asymmetric oxidation was also run under catalytic conditions (with respect to the titanium complex) and beneficial effects were observed in the presence of molecular sieves in the reaction medium.