methyl 2-(3-hydroxyprop-1-ynyl)benzoate

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: Step 2--A mixture of methyl o-(1-hydroxy-2-propyn-3-yl)benzoate (CXIX, 5.91 g) in methanol (60 ml) is hydrogenated at 40 psi hydrogen for 9 hrs using a total of 900 mg. Palladium on carbon (10%) is added in equal portions three times during the course of the reaction. The reaction is filtered and concentrated to give the saturated ester, methyl o-(1-hydroxyprop-3-yl)benzoate (CXXI). The reaction is filtered concentrated

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

Procedure: Step 1--A mixture of methyl o-iodobenzoate (9.17 g), propargyl alcohol (3.06 ml) and diethyl amine (90 ml) is treated with bis(triphenylphosphine)palladium chloride (1.23 g) and copper iodide (333 mg) and the reaction is stirred at 20-25° under nitrogen for 18 hrs. The reaction is then filtered through a filter agent and concentrated. The resulting residue is partitioned between water and dichloromethane. The combined organic phases are washed once with saline, dried over magnesium sulfate, filtered and concentrated to an oil. Purification by silica gel chromatography gives methyl o-(1-hydroxy-2-propyn-3-yl)benzoate (CXIX). The reaction is then filtered through a filter agent concentrated The resulting residue is partitioned between water and dichloromethane The combined organic phases are washed once with saline dried over magnesium sulfate filtered concentrated to an oil Purification by silica gel chromatography

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Methyl 2-iodobenzoate (25 g, 95 mmol), prop-2-yn-1-ol (8.02 g, 143 mmol) and TEA (26.6 ml, 191 mmol) were added to a deareated mixture of Pd(PPh3)4 (0.220 g, 0.191 mmol), copper(I) iodide (0.073 g, 0.382 mmol) in DMF (60 ml). The resulting mixture was stirred at 90° C. for 5 hrs and then at 40° C. overnight. The reaction mixture was poured into EtOAc (600 ml) and washed with brine (600 ml). Organic phase was then concentrated and the dark oil was rinsed with Et2O (600 ml). The mixture was filtered, and then concentrated to give the title compound as deeply brown oil (13.0 g). This compound was used in the next step without any further purification and characterization. at 40° C. overnight washed with brine (600 ml) Organic phase was then concentrated the dark oil was rinsed with Et2O (600 ml) The mixture was filtered concentrated

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Methyl 2-iodobenzoate (25 g, 95 mmol), prop-2-yn-1-ol (8.02 g, 143 mmol) and TEA (26.6 ml, 191 mmol) were added to a deareated mixture of Pd(PPh3)4 (0.220 g, 0.191 mmol), copper(I) iodide (0.073 g, 0.382 mmol) in DMF (60 ml). The resulting mixture was stirred at 90° C. for 5 hrs and then at 40° C. overnight. The reaction mixture was poured into EtOAc (600 ml) and washed with brine (600 ml). Organic phase was then concentrated and the dark oil was rinsed with Et2O (600 ml). The mixture was filtered, and then concentrated to give the title compound as deeply brown oil (13.0 g). This compound was used in the next step without any further purification and characterization. at 40° C. overnight washed with brine (600 ml) Organic phase was then concentrated the dark oil was rinsed with Et2O (600 ml) The mixture was filtered concentrated

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

Procedure: Step 2--A mixture of methyl o-(1-hydroxy-2-propyn-3-yl)benzoate (CXIX, 5.91 g) in methanol (60 ml) is hydrogenated at 40 psi hydrogen for 9 hrs using a total of 900 mg. Palladium on carbon (10%) is added in equal portions three times during the course of the reaction. The reaction is filtered and concentrated to give the saturated ester, methyl o-(1-hydroxyprop-3-yl)benzoate (CXXI). The reaction is filtered concentrated

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

Procedure: Step 2--A mixture of methyl o-(1-hydroxy-2-propyn-3-yl)benzoate (CXIX, 5.91 g) in methanol (60 ml) is hydrogenated at 40 psi hydrogen for 9 hrs using a total of 900 mg. Palladium on carbon (10%) is added in equal portions three times during the course of the reaction. The reaction is filtered and concentrated to give the saturated ester, methyl o-(1-hydroxyprop-3-yl)benzoate (CXXI). The reaction is filtered concentrated

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

Procedure: Step 1--A mixture of methyl o-iodobenzoate (9.17 g), propargyl alcohol (3.06 ml) and diethyl amine (90 ml) is treated with bis(triphenylphosphine)palladium chloride (1.23 g) and copper iodide (333 mg) and the reaction is stirred at 20-25° under nitrogen for 18 hrs. The reaction is then filtered through a filter agent and concentrated. The resulting residue is partitioned between water and dichloromethane. The combined organic phases are washed once with saline, dried over magnesium sulfate, filtered and concentrated to an oil. Purification by silica gel chromatography gives methyl o-(1-hydroxy-2-propyn-3-yl)benzoate (CXIX). The reaction is then filtered through a filter agent concentrated The resulting residue is partitioned between water and dichloromethane The combined organic phases are washed once with saline dried over magnesium sulfate filtered concentrated to an oil Purification by silica gel chromatography

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: Step 2--A mixture of methyl o-(1-hydroxy-2-propyn-3-yl)benzoate (CXIX, 5.91 g) in methanol (60 ml) is hydrogenated at 40 psi hydrogen for 9 hrs using a total of 900 mg. Palladium on carbon (10%) is added in equal portions three times during the course of the reaction. The reaction is filtered and concentrated to give the saturated ester, methyl o-(1-hydroxyprop-3-yl)benzoate (CXXI). The reaction is filtered concentrated