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Yields (%) of photoproducts obtained and the remained trans-isomer of compounds 1–5 for reactions performed in (left panel, * product of photochemical electrocyclization reaction and ** cyclization products with 2OH functional groups, see Table 3) a batch reactor (t = 30 min) and (right panel, ** product of photochemical electrocyclization reaction, see Table 8) flow reactor (τ = 2′) using LED lamp of 365 nm (without photocatalyst).
