The present disclosure provides regioselective methods for synthesizing intermediates useful in making prostacyclin derivatives, such as treprostinil.

The present disclosure provides regioselective methods for synthesizing intermediates useful in making prostacyclin derivatives, such as treprostinil.

Provided is a process for preparing methacrolein which maximizes capture of methanol. Also provided are processes for producing methacrylic acid and methyl methacrylate.

Provided is a process for preparing methacrolein which maximizes capture of methanol. Also provided are processes for producing methacrylic acid and methyl methacrylate.

The present invention relates to a method for preparing 14-methyl-16-oxabicyclo-[10.3.1]pentadecenesin a two-step synthesis from 3-methyl-1,5-cyclopentadecane-dione as starting material.

The present invention relates to a method for preparing 14-methyl-16-oxabicyclo-[10.3.1]pentadecenesin a two-step synthesis from 3-methyl-1,5-cyclopentadecane-dione as starting material.

Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.

Embodiments of the present disclosure include a metal-organic framework (MOF) composition comprising one or more metal ions, a plurality of organic ligands, and a solvent, wherein the one or more metal ions associate with the plurality of organic ligands sufficient to form a MOF with kag topology. Embodiments of the present disclosure further include a method of making a MOF composition comprising contacting one or more metal ions with a plurality of organic ligands in the presence of a solvent, sufficient to form a MOF with kag topology, wherein the solvent comprises water only. Embodiments of the present disclosure also describe a method of capturing chemical species from a fluid composition comprising contacting a MOF composition with kag topology and pore size of about 3.4 to 4.8 with a fluid composition comprising two or more chemical species and capturing one or more captured chemical species from the fluid composition.

Embodiments of the present disclosure include a metal-organic framework (MOF) composition comprising one or more metal ions, a plurality of organic ligands, and a solvent, wherein the one or more metal ions associate with the plurality of organic ligands sufficient to form a MOF with kag topology. Embodiments of the present disclosure further include a method of making a MOF composition comprising contacting one or more metal ions with a plurality of organic ligands in the presence of a solvent, sufficient to form a MOF with kag topology, wherein the solvent comprises water only. Embodiments of the present disclosure also describe a method of capturing chemical species from a fluid composition comprising contacting a MOF composition with kag topology and pore size of about 3.4 to 4.8 with a fluid composition comprising two or more chemical species and capturing one or more captured chemical species from the fluid composition.

A process for preparing aldehydes from methanol includes introducing a feed stream comprising methanol and hydrogen gas into a reaction zone of a first reactor, converting the feed stream into an intermediate stream comprising C.sub.2 to C.sub.4 olefins in the reaction zone in the presence of a first catalyst, wherein the first catalyst is a microporous catalyst component, removing water and species C.sub.4 and heavier from the intermediate stream to form a lights stream, and converting the lights stream into a product stream comprising propionaldehyde in the presence of a second catalyst and carbon monoxide in a second reactor. The propionaldehyde can further be converted to methyl methacrylate via oxidative esterification.