A process for degreasing a chemical plant is disclosed. The vessels and process lines are rinsed with a solvent comprising at least 50 wt % dialkyl carbonate, based upon the weight of the solvent.

A process for degreasing a chemical plant is disclosed. The vessels and process lines are rinsed with a solvent comprising at least 50 wt % dialkyl carbonate, based upon the weight of the solvent.

Provided herein are methods of altering enantiomeric excess. The methods may include irradiating an atropisomer that includes at least one chiral substituent to alter the enantiomeric excess of the atropisomer. The at least one chiral substituent may be removed following irradiation.

Provided herein are methods of altering enantiomeric excess. The methods may include irradiating an atropisomer that includes at least one chiral substituent to alter the enantiomeric excess of the atropisomer. The at least one chiral substituent may be removed following irradiation.

Alpha/alpha-prime/alkoxylated glycerol linear carbonic esters have formula (VI):

##STR00001##

where p is an integer higher than 1, x is an integer equaling 0 or 1 with x not always being zero, and M.sub.1 is hydrogen (H). Q.sub.1 can be a hydrocarbon aliphatic group, an amino hydrocarbon group or an oxygenated amino hydrocarbon group. G.sub.1 can be an /-alkoxylated propyl group of general formula (II):

##STR00002##

where R.sub.4, R.sub.5 and R.sub.6 are variously hydrogen (H), an alkyl or an amino-alkyl group having 1 to 5 carbon atoms, or general formula (VII):

##STR00003##

where R7 is a H or a hydrocarbon group having 1 to 6 carbon atoms, and m is an integer between 0 and 10 inclusive, and X is O or NH.

Alpha/alpha-prime/alkoxylated glycerol linear carbonic esters have formula (VI):

##STR00001##

where p is an integer higher than 1, x is an integer equaling 0 or 1 with x not always being zero, and M.sub.1 is hydrogen (H). Q.sub.1 can be a hydrocarbon aliphatic group, an amino hydrocarbon group or an oxygenated amino hydrocarbon group. G.sub.1 can be an /-alkoxylated propyl group of general formula (II):

##STR00002##

where R.sub.4, R.sub.5 and R.sub.6 are variously hydrogen (H), an alkyl or an amino-alkyl group having 1 to 5 carbon atoms, or general formula (VII):

##STR00003##

where R7 is a H or a hydrocarbon group having 1 to 6 carbon atoms, and m is an integer between 0 and 10 inclusive, and X is O or NH.

Alpha/alpha-prime/alkoxylated glycerol linear carbonic esters have formula (VI):

##STR00001##

where p is an integer higher than 1, x is an integer equaling 0 or 1 with x not always being zero, and M.sub.1 is hydrogen (H). Q.sub.1 can be a hydrocarbon aliphatic group, an amino hydrocarbon group or an oxygenated amino hydrocarbon group. G.sub.1 can be an /-alkoxylated propyl group of general formula (II):

##STR00002##

where R.sub.4, R.sub.5 and R.sub.6 are variously hydrogen (H), an alkyl or an amino-alkyl group having 1 to 5 carbon atoms, or general formula (VII):

##STR00003##

where R7 is a H or a hydrocarbon group having 1 to 6 carbon atoms, and m is an integer between 0 and 10 inclusive, and X is O or NH.

A method for producing a 1-(acyloxy)alkyl carbamate derivative (III), using a fluorous alkyl carbonate derivative (I), and a fluorous alkyl carbonate derivative (I) and a method for producing the same. In the formula, R.sup.1 represents C.sub.1-C.sub.4 alkyl group or a C.sub.3-C.sub.6 cycloalkyl group, R.sup.2 represents a C.sub.1-C.sub.4 alkyl group or a hydrogen atom, and A represents a fluorous alkyl group (wherein the fluorous alkyl group represents a C.sub.2-C.sub.11 alkyl group in which 40% or more of the hydrogen atoms are replaced by fluorine atoms).

A method for producing a 1-(acyloxy)alkyl carbamate derivative (III), using a fluorous alkyl carbonate derivative (I), and a fluorous alkyl carbonate derivative (I) and a method for producing the same. In the formula, R.sup.1 represents C.sub.1-C.sub.4 alkyl group or a C.sub.3-C.sub.6 cycloalkyl group, R.sup.2 represents a C.sub.1-C.sub.4 alkyl group or a hydrogen atom, and A represents a fluorous alkyl group (wherein the fluorous alkyl group represents a C.sub.2-C.sub.11 alkyl group in which 40% or more of the hydrogen atoms are replaced by fluorine atoms).

A method for the synthesis of /-alcoxylated glycerol linear carbonic esters, wherein the following are brought into contact at a reaction temperature lower than 220 C.: a quantity of at least one precursor selected from the group consisting of /-alcoxylated glycerol cyclo-carbonates; a quantity of at least one catalyst selected from the group consisting of metal oxides, Lewis acids, organometallic catalysts and mineral bases; and a quantity of at least one organic primer. A composition containing at least one novel /-alkoxylated glycerol linear carbonic ester.