3,5-Dimethylpyrazole → Triethoxy(3-isocyanatopropyl)silane

HRID 1473705Notes

Reaction equation

HRID 1473705 reaction equation
CC1C=C(C)NN=1.[N:8]([CH2:11][CH2:12][CH2:13][Si:14]([O:21][CH2:22][CH3:23])([O:18][CH2:19][CH3:20])[O:15][CH2:16][CH3:17])=[C:9]=[O:10]>C(OCC)(=O)C>[N-:8]=[C:9]=[O:10].[N:8]([CH2:11][CH2:12][CH2:13][Si:14]([O:21][CH2:22][CH3:23])([O:15][CH2:16][CH3:17])[O:18][CH2:19][CH3:20])=[C:9]=[O:10]

Participants

5

Reactant 2

HCID 62103,5-DimethylpyrazoleHCID 90613Triethoxy(3-isocyanatopropyl)silane

Product 2

HCID 90613Triethoxy(3-isocyanatopropyl)silaneHCID 105034Isocyanate

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent2×

Procedure

Into 100 mL of dehydrated ethyl acetate were dissolved 4.81 parts (50.0 parts by mol) of 3,5-dimethylpyrazole and 12.35 parts (50.0 parts by mol) of 3-isocyanatopropyltriethoxysilane, and the solution was stirred at room temperature for 3 days. After the end of the reaction, ethyl acetate was removed to obtain 16.8 parts of a blocked isocyanate compound wherein the isocyanate groups of 3-isocyanatopropyltriethoxysilane were blocked with 3,5-dimethylpyrazole.

Workup

  1. customwas removed

Sources & evidence

ORD record
ord-cee6b2a8684b4877868ea9fdc72d2dd8
Source dataset
uspto-grants-2015_04
Patent number
US09017476B2

Reaction notes

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