Photosensitized decarboxylative Michael addition through N-(acyloxy) phthalimides via an electron-transfer mechanism
K Okada, K Okamoto, N Morita, K Okubo…
Index: Okada, Keiji; Okamoto, Kazushige; Morita, Naoto; Okubo, Katsura; Oda, Masaji Journal of the American Chemical Society, 1991 , vol. 113, # 24 p. 9401 - 9402
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Citation Number: 94
Abstract
BNAH (0.63 mmol), and methyl vinyl ketone (0.60 mmol) with visible light (> 460 nm from a 500-W Xenon lamp) for 2 h under a nitrogen atmosphere produced the expected Michael addition product (2a, 68%) and phthalimide (89%) along with a small amount of the hydrocarbon (4a, 18%) and the 1: 2 adduct (3a, 5%) of the alkyl radical and methyl vinyl ket~ ne.~ Under the conditions, incident light is absorbed only by the Ru sensitizer and no ...
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