A process comprising: contacting a first mixture with a second mixture in a reaction zone, wherein said first mixture comprises an amine having the following formula wherein R4 and R5 are each independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, or R4 and R5 taken together with N represent a 5- or 6-membered saturated or unsaturated ring, and wherein said second mixture comprises a non-polar-high-boiling-point-solvent and a carbonyl (i.e. an aldehyde or a ketone) having the following formula (a) wherein R1 and R2 is each independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, each of which is independently substituted with one or more S-R6 wherein each R6 is independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, and (b) wherein R3 is selected from H, C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl; reacting in said reaction zone said amine and said carbonyl to produce an enamine and H 2 O, wherein said reacting is conducted under distillation conditions comprising a pressure from about 100 Pascals (Pa) to about 120,000 Pa, and a temperature below about, but preferably below, the thermal decomposition temperature of said enamine during said reacting; and removing a vapor phase from said reaction zone wherein said vapor phase comprises said non-polar-high-boiling-point-solvent and H 2 O, wherein the ratio of (the amount of first mixture added to said reaction zone): (the amount of vapor phase removed from said reaction zone) is from about (1 part first mixture added): (1 part vapor phase removed) to about (1 part first mixture added): (20 parts vapor phase removed). contacting a first mixture with a second mixture in a reaction zone, wherein said first mixture comprises an amine having the following formula wherein R4 and R5 are each independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, or R4 and R5 taken together with N represent a 5- or 6-membered saturated or unsaturated ring, and wherein said second mixture comprises a non-polar-high-boiling-point-solvent and a carbonyl (i.e. an aldehyde or a ketone) having the following formula (a) wherein R1 and R2 is each independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, each of which is independently substituted with one or more S-R6 wherein each R6 is independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, and (b) wherein R3 is selected from H, C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl; wherein said first mixture comprises an amine having the following formula wherein R4 and R5 are each independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, or R4 and R5 taken together with N represent a 5- or 6-membered saturated or unsaturated ring, and wherein said second mixture comprises a non-polar-high-boiling-point-solvent and a carbonyl (i.e. an aldehyde or a ketone) having the following formula (a) wherein R1 and R2 is each independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, each of which is independently substituted with one or more S-R6 wherein each R6 is independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, and (b) wherein R3 is selected from H, C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl; (a) wherein R1 and R2 is each independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, each of which is independently substituted with one or more S-R6 wherein each R6 is independently selected from C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl, and (b) wherein R3 is selected from H, C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 2 -C 8 alkoxyalkyl, C 7 -C 12 arylalkyl, C 2 -C 8 alkylaminoalkyl, aryl, and heteroaryl; reacting in said reaction zone said amine and said carbonyl to produce an enamine and H 2 O, wherein said reacting is conducted under distillation conditions comprising a pressure from about 100 Pascals (Pa) to about 120,000 Pa, and a temperature below about, but preferably below, the thermal decomposition temperature of said enamine during said reacting; and a pressure from about 100 Pascals (Pa) to about 120,000 Pa, and a temperature below about, but preferably below, the thermal decomposition temperature of said enamine during said reacting; and removing a vapor phase from said reaction zone wherein said vapor phase comprises said non-polar-high-boiling-point-solvent and H 2 O,