FIELD: chemistry.
SUBSTANCE: invention relates to production of O-silylurethanes used as starting material when producing organic isocyanates and curing agents for silicone rubber. Disclosed is a method of producing O-silylurethanes via N-siloxycarbonylation of diethylamine at temperature 45-50°C for 6 hours, and then interamination of trimethylsilyl ether of diethylcarbamic acid with diazoles at temperature 80-85°C for 5 hours in a single step without separating by-products.
EFFECT: simple process, specifically cutting the number of steps and duration of the process.
1 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING O-SILYLURETHANES | 2008 |
|
RU2372352C1 |
| METHOD OF PRODUCING O-SILYLURETHANES | 2010 |
|
RU2448972C1 |
| METHOD OF PREPARING O-SILYLURETHANS | 0 |
|
SU745904A1 |
| METHOD FOR PREPARING DIMETHYLCHLOROMETHYL- HYDROXYSILANE | 2002 |
|
RU2218343C1 |
| METHOD OF DIETHYLAMINOTRIMETHYLSILANE SYNTHESIS | 1992 |
|
RU2041228C1 |
| METHOD OF PREPARATION OF LOWER ISOCYANATES | 0 |
|
SU625387A1 |
| METHOD OF PRODUCING N-SUBSTITUTED (2-DIALKOXYPHOSPHORYL-4-CYANO)BUTANAMIDINES | 2009 |
|
RU2385870C1 |
| METHOD OF OBTAINING DERIVATIVES OF 4,9-DIAZA-2,7-DIOXA-1,6-DISILACYCLODECANE-3,8-DION | 0 |
|
SU615083A1 |
| METHOD FOR PREPARING 2,2,7,7-TETRAMETHYL-4,9-BIS-(DIMETHYLAMINO)- TETRAHYDRO-1,6,4,9,2,7-DIOXADIAZADISILECIN-5,10(2H,7H)-DIONE | 2002 |
|
RU2215744C1 |
| METHOD OF PREPARING O-SILYLURETHANS | 0 |
|
SU737402A1 |
