1-[bis(2-hydroxypropyl)amino]propan-2-ol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3 g of tris-(2-hydroxypropyl)amine and 1 g of SnO2 doped with sulfuric acid were heated in a manner similar to that described in Example 3 for a period of 1 h at 250° C. There were obtained, in addition to 50 wt % of educt, 30 wt % of N-(2-hydroxypropyl)-2,6-dimethylmorpholine. were heated in a manner similar to

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3 g of tris-(2-hydroxypropyl)amine and 1 g of SnO2 doped with sulfuric acid were heated in a manner similar to that described in Example 3 for a period of 1 h at 250° C. There were obtained, in addition to 50 wt % of educt, 30 wt % of N-(2-hydroxypropyl)-2,6-dimethylmorpholine. were heated in a manner similar to

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A sample of 620 g (3.25 moles) of tris-(2-hydroxypropyl)amine was melted on a steam bath. This was added slowly to a solution of 615 g (2.75 moles) of 2-chloro-5-trifluoromethylbenzoic acid and 375 g (282 ml, 2.98 moles) of dimethylsulfate in 750 ml of acetone in a 5 liter flask. (The solution began to boil during the course of the addition and was kept at 30° C. to 40° C. by intermittant cooling in an ice bath.) After addition was complete the solution was boilded on a steam bath for 30 minutes. The hot solution was diluted first with 250 ml water and, after 10 minutes, with 250 ml of 2N HCl and 750 ml of water and allowed to stir overnight. The solution was extracted with two 2 liter portions of dichloromethane and the organic extract was washed with saturated K2CO3 and water, dried over Na2SO4 and evaporated to afford 630 g (96%) of methyl 2-chloro-5-trifluoromethylbenzoate as a yellow liquid. TLC (silica gel, 10% CH2Cl2 -hexane) showed 1 spot (ester at Rf 0.4; this material was pure enough to be used in the next step without distillation. IR (NaCl, neat) 3080, 3000, 2960 (C--H), 1735 (C=O); NMR [CDCl3, (CH3)4Si] 3.78 (s, 3H, CH3 --), 7.27 (d, 1H, H-3, J3,4 =9), 7.43 (d of d, 1H, H-4, J3,4 =9, J4,6 -2.4), 7.80 (d, 1H, J4,6 -2.5); Mass Spectrum: m/e 240, 238 (1:3, M+), 209, 207 (1:3, M--OCH3), 181, 179 (1:3, M--CO22CH3). B.p. 95° C. at 4.5 torr. to boil during the course of the addition was kept at 30° C. to 40° C. by intermittant cooling in an ice bath ) After addition The solution was extracted with two 2 liter portions of dichloromethane the organic extract was washed with saturated K2CO3 and water dried over Na2SO4 evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A sample of 620 g (3.25 moles) of tris-(2-hydroxypropyl)amine was melted on a steam bath. This was added slowly to a solution of 615 g (2.75 moles) of 2-chloro-5-trifluoromethylbenzoic acid and 375 g (282 ml, 2.98 moles) of dimethylsulfate in 750 ml of acetone in a 5 liter flask. (The solution began to boil during the course of the addition and was kept at 30° C. to 40° C. by intermittant cooling in an ice bath.) After addition was complete the solution was boiled on a steam bath for 30 minutes. The hot solution was diluted first with 250 ml water and, after 10 minutes, with 250 ml of 2N HCl and 750 ml of water and allowed to stir overnight. The solution was extracted with two 2 liter portions of dichloromethane and the organic extract was washed with saturated K2CO3 and water, dried over Na2SO4 and evaporated to afford 630 g (96%) of methyl 2-chloro-5-trifluoromethylbenzoate as a yellow liquid. TLC (silica gel, 10% CH2Cl2 -hexane) showed 1 spot (ester at Rf 0.4; this material was pure enough to be used in the next step without distillation. IR (NaCl, neat) 3080, 3000, 2960 (C--H), 1735 (C=O); NMR [CDCl3, (CH3)4Si] 3.78 (s, 3H, CH3 --), 7.27 (d, 1H, H--3, J3,4 =9), 7.43 (d of d, 1H, H--4, J3,4 =9, J4,6 --2.4), 7.80 (d, 1H, J4,6 --2.5); Mass Spectrum: m/e 240, 238 (1:3, M+), 209, 207 (1:3, M--OCH3), 181, 179 (1:3, M--CO22CH3). B.p. 95° C. at 4.5 torr. to boil during the course of the addition was kept at 30° C. to 40° C. by intermittant cooling in an ice bath ) After addition The solution was extracted with two 2 liter portions of dichloromethane the organic extract was washed with saturated K2CO3 and water dried over Na2SO4 evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A sample of 620 g (3.25 moles) of tris-(2-hydroxypropyl)amine was melted on a steam bath. This was added slowly to a solution of 615 g (2.75 moles) of 2-chloro-5-trifluoromethylbenzoic acid and 375 g (282 ml, 2.98 moles) of dimethylsulfate in 750 ml of acetone in a 5 liter flask. (The solution began to boil during the course of the addition and was kept at 30° C. to 40° C. by intermittant cooling in an ice bath.) After addition was complete the solution was boiled on a steam bath for 30 minutes. The hot solution was diluted first with 250 ml water and, after 10 minutes, with 250 ml of 2N HCl and 750 ml of water and allowed to stir overnight. The solution was extracted with two 2 liter portions of dichloromethane and the organic extract was washed with saturated K2CO3 and water, dried over Na2SO4 and evaporated to afford 630 g (96%) of methyl 2-chloro-5-trifluoromethylbenzoate as a yellow liquid. TLC (silica gel, 10% CH2Cl2 -hexane) showed 1 spot (ester at Rf 0.4; this material was pure enough to be used in the next step without distillation. IR (NaCl, neat) 3080, 3000, 2960 (C--H), 1735 (C=O); NMR [CDCl3, (CH3)4Si] 3.78 (s, 3H, CH3 --), 7.27 (d, 1H, H--3, J3,4 =9), 7.43 (d of d, 1H, H--4, J3,4 =9, J4,6 --2.4), 7.80 (d, 1H, J4,6 --2.5); Mass Spectrum: m/e 240, 238 (1:3, M+), 209, 207 (1:3, M--OCH3), 181, 179 (1:3, M--CO22CH3). B.p. 95° C. at 4.5 torr. to boil during the course of the addition was kept at 30° C. to 40° C. by intermittant cooling in an ice bath ) After addition The solution was extracted with two 2 liter portions of dichloromethane the organic extract was washed with saturated K2CO3 and water dried over Na2SO4 evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3 g of tris-(2-hydroxypropyl)amine and 1 g of SnO2 doped with sulfuric acid were heated in a manner similar to that described in Example 3 for a period of 1 h at 250° C. There were obtained, in addition to 50 wt % of educt, 30 wt % of N-(2-hydroxypropyl)-2,6-dimethylmorpholine. were heated in a manner similar to

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a beaker, are added, with stirring, 11.4 g (0.06 mole) of triisopropanolamine in 100 ml of isopropanol. The reaction medium is stirred and cooled to between 5° and 10° C. 19.2 g (0.06 mole) of 5-n-dodecanoylsalicylic acid are then added. The mixture is stirred for 30 min at room temperature and then the clear mixture is filtered. The filtrate is evaporated to dryness. An oil is obtained which crystallizes at room temperature. It is filtered on sintered glass. The white powder obtained is dried under vacuum over phosphoric anhydride. 29.1 g of product are obtained, equivalent to a yield of 95%. Into a beaker, are added The reaction medium is stirred cooled to between 5° and 10° C The mixture is stirred for 30 min at room temperature the clear mixture is filtered The filtrate is evaporated to dryness An oil is obtained which crystallizes at room temperature It is filtered on sintered glass The white powder obtained is dried under vacuum over phosphoric anhydride

Conditions: temp:0.00; pressure:0.00; stir: