Methods and compositions are provided for synthesizing ionic liquids from lignin derived compounds comprising: contacting a starting material comprising lignin with a depolymerization agent to depolymerize the lignin and form a mixture of aldehyde containing compounds; contacting the mixture of aldehyde containing compounds with an amine under conditions suitable to convert the mixture of aldehyde containing compounds to a mixture of amine containing compounds; and contacting the mixture of amine containing compounds with an acid under conditions suitable to form an ammonium salt, thereby preparing the ionic liquid.

Methods and compositions are provided for synthesizing ionic liquids from lignin derived compounds comprising: contacting a starting material comprising lignin with a depolymerization agent to depolymerize the lignin and form a mixture of aldehyde containing compounds; contacting the mixture of aldehyde containing compounds with an amine under conditions suitable to convert the mixture of aldehyde containing compounds to a mixture of amine containing compounds; and contacting the mixture of amine containing compounds with an acid under conditions suitable to form an ammonium salt, thereby preparing the ionic liquid.

Methods and compositions are provided for synthesizing ionic liquids from lignin derived compounds comprising: contacting a starting material comprising lignin with a depolymerization agent to depolymerize the lignin and form a mixture of aldehyde containing compounds; contacting the mixture of aldehyde containing compounds with an amine under conditions suitable to convert the mixture of aldehyde containing compounds to a mixture of amine containing compounds; and contacting the mixture of amine containing compounds with an acid under conditions suitable to form an ammonium salt, thereby preparing the ionic liquid.

The present invention provides a process for preparation of isoproterenol hydrochloride (1a) comprising catalytic hydrogenation of 3,4-dihydroxy-2-(isopropylamino)-acetophenone hydrochloride (5a) in presence of an ion exchange resin, to provide isoproterenol hydrochloride (1a).

The present invention provides a process for preparation of isoproterenol hydrochloride (1a) comprising catalytic hydrogenation of 3,4-dihydroxy-2-(isopropylamino)-acetophenone hydrochloride (5a) in presence of an ion exchange resin, to provide isoproterenol hydrochloride (1a).

The present invention provides a process for preparation of isoproterenol hydrochloride (1a) comprising catalytic hydrogenation of 3,4-dihydroxy-2-(isopropylamino)-acetophenone hydrochloride (5a) in presence of an ion exchange resin, to provide isoproterenol hydrochloride (1a).

The present invention provides a process for preparation of isoproterenol hydrochloride (1a) comprising catalytic hydrogenation of 3,4-dihydroxy-2-(isopropylamino)-acetophenone hydrochloride (5a) in presence of an ion exchange resin, to provide isoproterenol hydrochloride (1a).

The present invention provides a process for preparation of isoproterenol hydrochloride (1a) comprising catalytic hydrogenation of 3,4-dihydroxy-2-(isopropylamino)-acetophenone hydrochloride (5a) in presence of an ion exchange resin, to provide isoproterenol hydrochloride (1a).

Methods and compositions are provided for synthesizing ionic liquids from lignin. Methods and compositions are also provided for treating lignin with ionic liquids.

Methods and compositions are provided for synthesizing ionic liquids from lignin. Methods and compositions are also provided for treating lignin with ionic liquids.