- MANUFACTURE OF 1,3-PROPANEDIOL ESTERS
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Disclosed is a process for manufacturing an ester of 1,3-propanediol, comprising, contacting at a temperature of about 0 DEG C. to about 250 DEG C., ethylene, formaldehyde or a form of formaldehyde, a carboxylic acid, and a compound of the formula MZn.Qt, wherein: M is a zirconium[IV], cobalt[II], vanadium[IV], bismuth[II], tin[II], a rare earth metal, scandium or yttrium; n is the oxidation state of M; at least one of Z is an anion of the formula R1SO3- or R1CO2-, wherein R1 is hydrocarbyl or substituted hydrocarbyl containing 1 to 20 carbon atoms or part of a polymer, and the remainder of Z is oxo or one or more monovalent anions; Q is a neutral ligand; and t is 0 or an integer of 1 to 12.
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- OXIDATION OF 1-METHYLCYCLOBUTANOL BY Pb(IV) AND Mn(III) COMPOUNDS
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The main product of the reaction of 1-methylcyclobutanol with Pb(OAc)4 in benzene is 1-phenyl-4-pentanone; the use of Mn(OAc)3 in acetic acid gives a mixture of 2,9-decanedione and methyl propyl ketone; 1-(chloro-, bromo-, thiocyano-, or ccyano)-4-pentanone is formed in the presence of the systems Pb(OAc)4-metal halide or Mn(OAc)3-metal halide. Keywords: oxidation, 1-methylcyclobutanol, lead tetraacetate, manganese triacetate, β-cleavage.
- Kapustina, N.I.,Nikishin, G.I.
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p. 2189 - 2192
(2007/10/02)
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