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33644501611
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note
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We had observed that the indole NH group inhibited the radical cyclization of a related selenoester upon pyridines, probably by interfering at the rearomatization step: see ref 5.
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42
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0034657544
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For a related dimerization involving 2-indolylacyl chlorides, see: Boger, D. L.; Fink, B. E.; Hedrick, M. P. Biorg. Med. Chem. Lett. 2000, 10, 1019-1020.
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33644556290
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note
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Simple heating of selenoester 9 in 1:1 benzene-acetonitrile for 3 h led to a 3:1 mixture of 9 and 11. In contrast, heating of 9 in benzene for 6 h led to a 10:1 mixture of 9 and 11.
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