2-吗啉-4-基环己-2-烯-1-one

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 250-mL three-necked round-bottomed flask equipped with a condenser, gas inlet and septas is placed under N2 atmosphere. The flask is charged with 2-(morpholin-4-yl)-2-cyclohexen-1-one (7.0046 g, 38.65 mmol; Preparation 2), toluene (74.0 mL) and 2,6-diisopropylaniline (6.8521 g, 38.65 mmol). To the yellow solution is added p-toluenesulfonic acid monohydrate (7.3520 g, 38.65 mmol; p-TsOH.H2O). The reaction mixture became very thick with a lot of precipitate. The mixture is heated to 80° C. (oil bath temperature) and allowed to stir. Another 5.0 mL of toluene are added to facilitate stirring. The mixture is stirred for 2 hours. Reaction mixture is allowed to reach room temperature. The mixture is filtered. The filtrate is concentrated under high vacuum to afford 10.09 g of a yellow solid. The solid is dissolved in hot hexanes (about 30 mL) and filtered. The solution is allowed to cool to room temperature, seeded and place on the freezer. The solution is filtered while most of the solid is left behind on the flask. The flask is placed on an ice bath. The solid is rinsed with two about 6 mL portions of cold hexanes. The yellow solid is allowed to dry, transfer to a vial and left to dry overnight under vacuum (first crop: 4.0550 g). Mother liquor is concentrated and recrystallization is repeated two more times. The second crop is left in the freezer for 5 hours (second crop: 1.0785 g) and third crop is left overnight (third crop: 0.6919 g). The combined yield of title compound of Preparation 3 is 5.8254 g (55.54%). A 250-mL three-necked round-bottomed flask equipped with a condenser, gas inlet to facilitate stirring The mixture is stirred for 2 hours Reaction mixture to reach room temperature The mixture is filtered The filtrate is concentrated under high vacuum

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Synthesis based on literature modified procedure (Ōhashi, M.; Takahashi, T.; Inoue, S.; Sato, K. Bulletin Chemical Society of Japan, 1975; 48:1892). A 500-mL round-bottomed flask is equipped with a Dean Stark, condenser, stir bar and gas inlet (N2 gas atmosphere). The flask is charged with of 1,2-cyclohexanedione (15.14 g, 135.00 mmol), morpholine (14.82 g, 170.10 mmol) and toluene (330 mL). The resulting yellow solution is heated to reflux for 5 hours. Heating is stopped and about 3.0 mL of water are collected on the Dean Stark. The brown solution is decanted away from a thick oil and rinsed with toluene. The solution is concentrated under high vacuum to afford 23.33 g (95.34% yield) of title compound of Preparation 2 as a brown solid. Synthesis A 500-mL round-bottomed flask is equipped with a Dean Stark, condenser The resulting yellow solution is heated to reflux for 5 hours Heating about 3.0 mL of water are collected on the Dean Stark The brown solution is decanted away from a thick oil rinsed with toluene The solution is concentrated under high vacuum to afford

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 250-mL three-necked round-bottomed flask equipped with a condenser, gas inlet and septas is placed under N2 atmosphere. The flask is charged with 2-(morpholin-4-yl)-2-cyclohexen-1-one (7.0046 g, 38.65 mmol; Preparation 2), toluene (74.0 mL) and 2,6-diisopropylaniline (6.8521 g, 38.65 mmol). To the yellow solution is added p-toluenesulfonic acid monohydrate (7.3520 g, 38.65 mmol; p-TsOH.H2O). The reaction mixture became very thick with a lot of precipitate. The mixture is heated to 80° C. (oil bath temperature) and allowed to stir. Another 5.0 mL of toluene are added to facilitate stirring. The mixture is stirred for 2 hours. Reaction mixture is allowed to reach room temperature. The mixture is filtered. The filtrate is concentrated under high vacuum to afford 10.09 g of a yellow solid. The solid is dissolved in hot hexanes (about 30 mL) and filtered. The solution is allowed to cool to room temperature, seeded and place on the freezer. The solution is filtered while most of the solid is left behind on the flask. The flask is placed on an ice bath. The solid is rinsed with two about 6 mL portions of cold hexanes. The yellow solid is allowed to dry, transfer to a vial and left to dry overnight under vacuum (first crop: 4.0550 g). Mother liquor is concentrated and recrystallization is repeated two more times. The second crop is left in the freezer for 5 hours (second crop: 1.0785 g) and third crop is left overnight (third crop: 0.6919 g). The combined yield of title compound of Preparation 3 is 5.8254 g (55.54%). A 250-mL three-necked round-bottomed flask equipped with a condenser, gas inlet to facilitate stirring The mixture is stirred for 2 hours Reaction mixture to reach room temperature The mixture is filtered The filtrate is concentrated under high vacuum

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Synthesis based on literature modified procedure (Ōhashi, M.; Takahashi, T.; Inoue, S.; Sato, K. Bulletin Chemical Society of Japan, 1975; 48:1892). A 500-mL round-bottomed flask is equipped with a Dean Stark, condenser, stir bar and gas inlet (N2 gas atmosphere). The flask is charged with of 1,2-cyclohexanedione (15.14 g, 135.00 mmol), morpholine (14.82 g, 170.10 mmol) and toluene (330 mL). The resulting yellow solution is heated to reflux for 5 hours. Heating is stopped and about 3.0 mL of water are collected on the Dean Stark. The brown solution is decanted away from a thick oil and rinsed with toluene. The solution is concentrated under high vacuum to afford 23.33 g (95.34% yield) of title compound of Preparation 2 as a brown solid. Synthesis A 500-mL round-bottomed flask is equipped with a Dean Stark, condenser The resulting yellow solution is heated to reflux for 5 hours Heating about 3.0 mL of water are collected on the Dean Stark The brown solution is decanted away from a thick oil rinsed with toluene The solution is concentrated under high vacuum to afford

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 250-mL three-necked round-bottomed flask equipped with a condenser, gas inlet and septas is placed under N2 atmosphere. The flask is charged with 2-(morpholin-4-yl)-2-cyclohexen-1-one (7.0046 g, 38.65 mmol; Preparation 2), toluene (74.0 mL) and 2,6-diisopropylaniline (6.8521 g, 38.65 mmol). To the yellow solution is added p-toluenesulfonic acid monohydrate (7.3520 g, 38.65 mmol; p-TsOH.H2O). The reaction mixture became very thick with a lot of precipitate. The mixture is heated to 80° C. (oil bath temperature) and allowed to stir. Another 5.0 mL of toluene are added to facilitate stirring. The mixture is stirred for 2 hours. Reaction mixture is allowed to reach room temperature. The mixture is filtered. The filtrate is concentrated under high vacuum to afford 10.09 g of a yellow solid. The solid is dissolved in hot hexanes (about 30 mL) and filtered. The solution is allowed to cool to room temperature, seeded and place on the freezer. The solution is filtered while most of the solid is left behind on the flask. The flask is placed on an ice bath. The solid is rinsed with two about 6 mL portions of cold hexanes. The yellow solid is allowed to dry, transfer to a vial and left to dry overnight under vacuum (first crop: 4.0550 g). Mother liquor is concentrated and recrystallization is repeated two more times. The second crop is left in the freezer for 5 hours (second crop: 1.0785 g) and third crop is left overnight (third crop: 0.6919 g). The combined yield of title compound of Preparation 3 is 5.8254 g (55.54%). A 250-mL three-necked round-bottomed flask equipped with a condenser, gas inlet to facilitate stirring The mixture is stirred for 2 hours Reaction mixture to reach room temperature The mixture is filtered The filtrate is concentrated under high vacuum

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Synthesis based on literature modified procedure (Ōhashi, M.; Takahashi, T.; Inoue, S.; Sato, K. Bulletin Chemical Society of Japan, 1975; 48:1892). A 500-mL round-bottomed flask is equipped with a Dean Stark, condenser, stir bar and gas inlet (N2 gas atmosphere). The flask is charged with of 1,2-cyclohexanedione (15.14 g, 135.00 mmol), morpholine (14.82 g, 170.10 mmol) and toluene (330 mL). The resulting yellow solution is heated to reflux for 5 hours. Heating is stopped and about 3.0 mL of water are collected on the Dean Stark. The brown solution is decanted away from a thick oil and rinsed with toluene. The solution is concentrated under high vacuum to afford 23.33 g (95.34% yield) of title compound of Preparation 2 as a brown solid. Synthesis A 500-mL round-bottomed flask is equipped with a Dean Stark, condenser The resulting yellow solution is heated to reflux for 5 hours Heating about 3.0 mL of water are collected on the Dean Stark The brown solution is decanted away from a thick oil rinsed with toluene The solution is concentrated under high vacuum to afford