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0042771031
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note
-
3) α 24.5 (d, J = 27.7 Hz, 1 P), 26.7 (d, J = 27.3 Hz, 1 P)]. However, attempts to isolate this product failed.
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43
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0043272329
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note
-
The majority of the known alkyne insertion reactions involve metalacycles bearing monodentate ligands; see refs 3a and 7.
-
-
-
-
47
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0043272328
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note
-
Indicative HMBC correlations for benzopyrans 9a and 13:
-
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48
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0000358823
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