Production of 2-methylbutanal

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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502155, C07C 4550

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active

046057811

ABSTRACT:
A continuous process for hydroformylating butene-2 so as to produce 2-methylbutanal in the presence of an halogen-free rhodium complex catalyst of the formula RhH.sub.m (CO).sub.n L.sub.p, wherein "L" is a trialkyl (including cycloalkyl) phosphine ligand having a cone angle within the range of 159 to 171 degrees and wherein the frequency of the A.sub.1 carbonyl mode of the Ni(CO).sub.3 L in dichloromethane is within the range of 2056.1 to 2061.1 cm.sup.-1, there being no substantial excess of free phosphorous ligand.

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Tolman, "Chemical Review", vol. 77, Feb.-Dec. 1977, pp. 313-347.
Fell et al., "Tetrahedron Letters", No. 29, pp. 3261-3266, 1968, Pergamon Press, Great Britain.

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