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Pseudomonas AK lipase was purchased from Amano International Enzyme Co. for S 100/100 g.
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42
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85197321836
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note
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Several attempts to couple the C5 ketone (below) with vinyl iodide 5 under Suzuki conditions afforded the cis-olefin, but in much lower yields (33-40%). (Chemical Equation Presented)
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85197334222
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note
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[25c] Professor Danishefsky has informed us that the epoxidation can be carried with useful levels of selectivity providing the DMDO solution be kept cold during the addition to the solution of olefin.
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