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New chiral thioureas 1–8 containing 1,2-ethylendiamine or trans-1,2-diaminocyclohexane as the carbon skeleton, and containing an (S)-α-phenylethyl group have been prepared (79–98% yield). Thioureas 1–8 were used as ligands for the zinc-based catalyzed asymmetric hydrosilylation of acetophenone with polymethylhydrosiloxane (PMHS). The best result was achieved with monothiourea 1 (up to 75% ee), in...
The overused term ‘cloud computing’ is irrevocably associated with hype, and the term ‘cloud security’ is also well on its way to becoming an oxymoron. Data stored by third parties is data put at risk. Just ask people who've had their Google accounts suspended and lost access to all of their email and Google Docs. 1,2
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