ethenoxybenzene

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

Procedure: 45 g (375 mmol) of phenylvinyl ether, 21 g (375 mmol) of acrolein and 0.66 g (6 mmol) of hydroquinone are reacted in a pressure reactor for 1 h at 185° C. After cooling, 2-phenoxy-3,4-dihydro-2H-pyran is isolated by distillation at 80° C./0.0267 kPa in a yield of 30.2 (172 mmol; 46%) as a clear liquid. After cooling

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

Procedure: 45 g (375 mmol) of phenylvinyl ether, 21 g (375 mmol) of acrolein and 0.66 g (6 mmol) of hydroquinone are reacted in a pressure reactor for 1 h at 185° C. After cooling, 2-phenoxy-3,4-dihydro-2H-pyran is isolated by distillation at 80° C./0.0267 kPa in a yield of 30.2 (172 mmol; 46%) as a clear liquid. After cooling

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

Procedure: 45 g (375 mmol) of phenylvinyl ether, 21 g (375 mmol) of acrolein and 0.66 g (6 mmol) of hydroquinone are reacted in a pressure reactor for 1 h at 185° C. After cooling, 2-phenoxy-3,4-dihydro-2H-pyran is isolated by distillation at 80° C./0.0267 kPa in a yield of 30.2 (172 mmol; 46%) as a clear liquid. After cooling

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

Procedure: 45 g (375 mmol) of phenylvinyl ether, 21 g (375 mmol) of acrolein and 0.66 g (6 mmol) of hydroquinone are reacted in a pressure reactor for 1 h at 185° C. After cooling, 2-phenoxy-3,4-dihydro-2H-pyran is isolated by distillation at 80° C./0.0267 kPa in a yield of 30.2 g (172 mmol; 46%) as a clear liquid. After cooling

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

Procedure: Phenyl vinyl ether (88.1 g, 0.7341 moles) (prepared as in Example 1) and maleic anhydride (71.9 g, 0.7341 moles) were dissolved in 1224 mL of 1,2-dichloroethane. The solution was placed in a 2-liter three-neck round-bottom flask equipped with a thermometer, a condenser, and nitrogen inlet, and it was purged with nitrogen for half an hour. Then VAZO® (4.7 g, 0.02447 moles) (a radical intiator supplied by DuPont) and butanethiol (11.8 mL, 0.1101 moles) were added under nitrogen. The polymerization was carried out at 60° C. for about 24 hours to complete monomer conversion. The polymer was isolated by precipitation in hexane. The solution was placed in a 2-liter three-neck round-bottom flask equipped with a thermometer, a condenser, and nitrogen inlet, and it was purged with nitrogen for half an hour were added under nitrogen

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

Procedure: 45 g (375 mmol) of phenylvinyl ether, 21 g (375 mmol) of acrolein and 0.66 g (6 mmol) of hydroquinone are reacted in a pressure reactor for 1 h at 185° C. After cooling, 2-phenoxy-3,4-dihydro-2H-pyran is isolated by distillation at 80° C./0.0267 kPa in a yield of 30.2 (172 mmol; 46%) as a clear liquid. After cooling