Formaldehyde → Benzoxazines

HRID 351956

Reaction equation

HRID 351956 reaction equation
C1(=O)N([C:6]2[CH:11]=[CH:10][C:9]([OH:12])=[CH:8][CH:7]=2)C(=O)C=C1.[NH2:15][CH2:16][CH2:17]C[Si](OCC)(OCC)OCC.C=O>C1(C)C=CC=CC=1>[O:12]1[C:9]2[CH:10]=[CH:11][CH:6]=[CH:7][C:8]=2[CH:17]=[CH:16][NH:15]1

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 13521(3-Aminopropyl)triethoxysilaneHCID 817341-(4-hydroxyphenyl)-1H-pyrrole-2,5-dione

Product 1

HCID 17845026BenzoxazinesYield 37%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

This compound was prepared according to the method used for the previous examples by combining 4-maleimidophenol (18.9 g, 100 mmol), 3-aminopropyltriethoxysilane (22.1 g, 100 mmol), paraformaldehyde (6.3 g, 210 mmol), and toluene (150 mL). The final product was a highly viscous red liquid. The yield was 37%.

Workup

  1. customThis compound was prepared

Sources & evidence

ORD record
ord-ccafa9c809e64946a0be199b17c9234d
Source dataset
uspto-grants-2004_06
Patent number
US06743852B2

Linked notes

Loading…