A process for producing a lactone by reacting in a hydrogenation reaction zone a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester with hydrogen in a liquid phase using a solvent in the presence of a catalyst comprising ruthenium and an organic phosphine, which ...
Two-photon polymerization lithography is promising for producing three-dimensional structures with user-defined micro- and nanoscale features. Additionally, shrinkage by thermolysis can readily shorten the lattice constant of three-dimensional photonic c
1. A method for producing lactones, which comprises reacting an amide compound of Formula (I): wherein X represents a halogen atom; R, R' and R1 to R6 each independently represents a hydrogen atom or any desired substituent; and n represents an integer of 0 to 2 with an aqueous medium...
Described is a microbilogical method for producing the lactone, sclareolide and a diol having the chemical structure: ##STR1## using sclareol having the structure: ##STR2## as a substrate and using one of the microorganisms: Cryptococcus albidus (saito [skinner var. albidus]), ATCC 20918Ben...
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a 2 ml system) isoprene from mevalonate. Moreover, this study showed that the proposed process has the advantages of longer producing period of 40 h comparing with the controlled in vivo process. The improved production efficiency indicated that the proposed strategy is useful for the enzymatic ...
A novel process for preparing a 2α, 4α-dihydroxy-3β-iodo-cyclopentane γ-lactone of the formula ##SPC1## Wherein the process comprises reacting in a single reaction vessel a ketone of the formula ##SPC2## With an oxidizing agent in an alkaline media, acidifying the alkali media and...
This invention relates to processes for producing an olefin-terminated polyester. In one of the processes which comprises reacting an olefin-terminated diester compound with a lactone in the presence of a polymerization catalyst with transesterification ability, the lactone is in a limited amount added...
bran paste, a clear bran pickles flavoring solution, processes for producing the flavoring solutions, a process for producing lactones which are essential components of the flavoring solutions, and a bacterium belonging to the genus Corynebacterium which is useful for producing a lactone are disclosed....
24. A process for producing a lactone-containing solution, which comprises subjecting a culture of a microorganism having the ability to produce a lactone to solid-liquid separation, recovering the residue, and then extracting the lactone from said residue with an acidic aqueous solution of ethanol...