4-Methoxyphenol → Ethyl carbamate;bis(2-methylprop-2-enoic acid)

HRID 704055

Reaction equation

HRID 704055 reaction equation
CC(N=C=O)(C1C=CC=C(C([N:13]=C=O)(C)C)C=1)C.COC1C=CC(O)=CC=1.[C:28]([O:33][CH2:34][CH:35](O)C)(=[O:32])[C:29]([CH3:31])=[CH2:30].C([O-])(=O)CCCCCCCCCCC.C([O-])(=O)CCCCCCCCCCC.C([Sn+2])CCC.C(OC1C(OCC)=C(S(C2C=CC=C(OCC)C=2OCC)(=O)=O)C=CC=1)C>>[C:28]([OH:33])(=[O:32])[C:29]([CH3:31])=[CH2:30].[C:28]([OH:33])(=[O:32])[C:29]([CH3:31])=[CH2:30].[NH2:13][C:28]([O:33][CH2:34][CH3:35])=[O:32]

Participants

6

Reactant 5

HCID 90154-MethoxyphenolHCID 135392-Hydroxypropyl methacrylateHCID 177191,3-Bis(1-isocyanato-1-methylethyl)benzeneHCID 20075306Bis(diethoxyphenyl)sulfoneHCID 178443304HCID 178443304, compound

Product 1

HCID 21885196Ethyl carbamate;bis(2-methylprop-2-enoic acid)

Conditions

Temperature
60 °C

Procedure

488 Parts of m-tetramethylxylene diisocyanate and 0.3 part of hydroquinone monomethyl ether were charged in a three necked flask and thereto was added dropwise a mixture of 295 parts of 2-hydroxypropyl methacrylate and 0.3 part of n-butyl tin dilaurate over a period of 3 hours at 60° C. with stirring. After completion of the addition, reaction was further allowed to proceed for 2 hours at 70° C., followed by cooling at 60° C. To the reaction mixture was added dropwise 426 parts of bis(diethoxyphenyl)sulfone over a period of 3 hours. After completion of the reaction, reaction was allowed to proceed for 5 hours at 70° C. to obtain urethane dimethacrylate (UDM2).

Workup

  1. additionwas added dropwise
  2. additionAfter completion of the addition, reaction
  3. customAfter completion of the reaction, reaction
  4. waitto proceed for 5 hours at 70° C.

Sources & evidence

ORD record
ord-1026c530f03d4a619fce76bc41ca9b38
Source dataset
uspto-grants-1991_01
Patent number
US04985472

Linked notes

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