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58149201705
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The use of other common solvents such as chloroform, toluene, THF, and ether gave diminished yields of 6a.
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The use of other common solvents such as chloroform, toluene, THF, and ether gave diminished yields of 6a.
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50
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58149179325
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In contrast to our report of Mukaiyama reaction (ref 10), the OTMS silyl enol ether analogue of 1 gave a lower yield of 6 than did 1. The additional advantage of the OTBS silyl enol ether is its greater stability.
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In contrast to our report of Mukaiyama reaction (ref 10), the OTMS silyl enol ether analogue of 1 gave a lower yield of 6 than did 1. The additional advantage of the OTBS silyl enol ether is its greater stability.
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51
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58149200282
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Other common Michael acceptors such as α,ß-unsaturated esters, unsaturated nitriles, and unsaturated nitro compounds were found to be unreactive under the standard reaction condition
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Other common Michael acceptors such as α,ß-unsaturated esters, unsaturated nitriles, and unsaturated nitro compounds were found to be unreactive under the standard reaction condition.
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