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In all cases except entries 8-12, the coupling product A, generated from 2a and methanethiol, was always obtained in 20-40% yields (yield based on la) along with the isolation of 477-chromene 3a. (Figure Presented)
-
In all cases except entries 8-12, the coupling product A, generated from 2a and methanethiol, was always obtained in 20-40% yields (yield based on la) along with the isolation of 477-chromene 3a. (Figure Presented)
-
-
-
-
59
-
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77954799687
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-
2 for 10 min at reflux (Table 2, entry 12)
-
2 for 10 min at reflux (Table 2, entry 12).
-
-
-
-
60
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77954800763
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2. Its spectroscopic data are included in the Supporting Information. . (Figure Presented)
-
2. Its spectroscopic data are included in the Supporting Information. . (Figure Presented)
-
-
-
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