The invention provides a process for the preparation of xanthohumol, wherein a xanthohumol-containing extract is mixed with water, a transition metal salt solution is added to the obtained mixture, and then the obtained xanthohumol precipitate is collected and dried to obtain xanthohumol of the purity higher than 90%.

The invention provides a process for the preparation of xanthohumol, wherein a xanthohumol-containing extract is mixed with water, a transition metal salt solution is added to the obtained mixture, and then the obtained xanthohumol precipitate is collected and dried to obtain xanthohumol of the purity higher than 90%.

The present invention discloses a process for depolymerization of lignin to yield substituted phenolic monomers using Brnsted ionic liquid as catalyst under mild reaction conditions to obtain an overall yield of monomers up to 97%.

The present invention discloses a process for depolymerization of lignin to yield substituted phenolic monomers using Brnsted ionic liquid as catalyst under mild reaction conditions to obtain an overall yield of monomers up to 97%.

SGLT2 inhibitor intermediate V-1 and the use thereof. The present invention specifically relates to an intermediate as represented by formula V-1 and the use thereof in the preparation of an SCLT2 inhibitor. The intermediate and a method for preparing an SCLT2 inhibitor have the advantages of easily available raw materials, simple operation, short production period, high yield and suitability for industrial production.

SGLT2 inhibitor intermediate V-1 and the use thereof. The present invention specifically relates to an intermediate as represented by formula V-1 and the use thereof in the preparation of an SCLT2 inhibitor. The intermediate and a method for preparing an SCLT2 inhibitor have the advantages of easily available raw materials, simple operation, short production period, high yield and suitability for industrial production.

Acrolein is a useful additive for treating hydrocarbon fluids, such as crude oil, for multiple purposes including, but not necessarily limited to, reducing or preventing microbial activity, scavenging hydrogen sulfide (H2S), and/or at least partially dissolving iron sulfide (Fe.sub.xS.sub.y). Acrolein can be stabilized against decomposition by mixing or combining it with at least one alkyl carbonate, which can also raise the flash point of the stabilized acrolein composition.

Acrolein is a useful additive for treating hydrocarbon fluids, such as crude oil, for multiple purposes including, but not necessarily limited to, reducing or preventing microbial activity, scavenging hydrogen sulfide (H2S), and/or at least partially dissolving iron sulfide (Fe.sub.xS.sub.y). Acrolein can be stabilized against decomposition by mixing or combining it with at least one alkyl carbonate, which can also raise the flash point of the stabilized acrolein composition.

The present disclosure provides a process for the synthesis of divanillylmethane. The process includes reacting vanilline with an aqueous solution of formaldehyde in the presence of an acid catalyst.

The present disclosure provides a process for the synthesis of divanillylmethane. The process includes reacting vanilline with an aqueous solution of formaldehyde in the presence of an acid catalyst.