Hydroquinone → HCID 22412625、化合物

A 500 ml 3-necked round bottom flask equipped with a reflux condenser, a mechanical stirrer, a thermometer, a dropping funnel and an efficient N2 blanket, is charged with 2-aminoethyl methacrylate hydrochloride 41.4 g (0.25 mole), 50mg of hydroquinone and 300 ml of chloroform. The contents are cooled to between 0 and 5 degrees C. and stirred. Through a dropping funnel 25.3 g (0.25 mole) of triethylamine and 13.3 g (0.25 mole) of vinyl isocyanate in 50 ml of chloroform are added into the reaction flask and maintained at between 0 and 5 degrees C. The temperature is allowed to rise to room temperature with the contents stirred constantly overnight, passed through a silica gel column and dried with magnesium sulfate. The contents are then evaporated under reduced pressure to give the named product.

1. customA 500 ml 3-necked round bottom flask equipped with a reflux condenser, a mechanical stirrer
2. temperatureThe contents are cooled to between 0 and 5 degrees C
3. temperaturemaintained at between 0 and 5 degrees C
4. customto rise to room temperature with the contents
5. stirringstirred constantly overnight
6. dry with materialdried with magnesium sulfate
7. customThe contents are then evaporated under reduced pressure
8. customto give the named product

ORDレコード

ord-6dd6abfc71514a04a36a8fcb90096a7b

出典データセット

uspto-grants-1994_05

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US05310779