Direct synthesis of acetals by rhodium catalysed hydroformylation of alkenes in the presence of orthoformate |
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| Institution: | 1. Inorganic Chemistry Department, University of Athens, Panepistimiopolis, 157 71 Athens, Greece;2. Laboratoire de Catalyse et de Chimie Fine, Ecole Nationale Supérieure de Chimie deToulouse, 118, route de Narbonne 31077 Toulouse cédex, France;1. Universidad del Zulia (L.U.Z.), Facultad Experimental de Ciencias, Departamento de Química, Laboratorios de Química Inorgánica, de Química Teórica y Computacional y de Química Inorgánica Teórica, Maracaibo, Venezuela;2. Universidad de Carabobo (UC), Facultad de Ingeniería, Centro de Investigaciones Químicas, Valencia, Venezuela;1. Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea;2. Department of Chemistry, Shaheed Benazir Bhutto University, Sheringal Dir (U), Khyber Pakhtunkhwa, Pakistan;1. Ecocompatible Asymmetric Catalysis Laboratory (LCAE), Badji Mokhtar Annaba-University, B.P. 12, 23000 Annaba, Algeria;2. Institute of Condensed Matter and Nanosciences Molecules, Solids and Reactivity (IMCN/MOST), Université Catholique de Louvain, Bâtiment Lavoisier, Pl. Louis Pasteur, 1, bte 3, 1348 Louvain La Neuve, Belgium;1. School of Nature Resources & Materials Science, Northeastern University at Qinhuangdao, Qinhuangdao, Hebei Province 066004, PR China;2. School of Chemistry, Monash University, Clayton, Victoria 3800, Australia;1. Universitá degli Studi di Padova, Dipartimento di Ingegneria Industriale, Via Marzolo n. 9, 35131 Padova, Italy;2. Åbo Akademi University, Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, Biskopsgatan 8, 20500 Turku/Åbo, Finland;3. Umeå University, Department of Chemistry, Chemical-Biochemical Centre (KBC), Technical Chemistry, Umeå University, SE-90187 Umeå, Sweden;4. KTH—Royal Institute of Technology, Department of Chemical Engineering and Technology, Chemical Technology, SE-100 44 Stockholm, Sweden |
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| Abstract: | The two catalyst precursors Rh2(μ-penicillamine)2(CO)4]OTf]2 and Rh2(μ-cysteine)2(CO)4]OTf]2 in the presence of 4 equivalents of P(OPh)3 in triethyl orthoformate as solvent and reactant, permit the low pressure hydroformylation of various alkenes into the corresponding acetals. Apart from a few low-yield by-products resulting from isomerization of the substrates, the carbonylated products obtained directly and exclusively are acetals. |
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