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2 = 0.907; Final R indices [I > 2σ(I)] R1 = 0.0470, wR2 = 0.0913.
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3CN, therefore the cosolvent THF is required.
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53
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Substituted MCPs 1 are readily available by the reaction of aldehydes/ketones with 3-bromopropylphosphonium bromide. It should be noted that the aryl-substituted MCPs are stable at -15 °C. For the synthesis of MCPs, see: Utimoto, K.; Tamura, M.; Sisido, K. Tetrahedron 1973, 29, 1169.
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