Formaldehyde → Benzoxazines

HRID 351949

Reaction equation

HRID 351949 reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][Si](OC)(OC)OC.C=O.[C:14]1([OH:24])C2[C:18](=CC=CC=2)[CH:17]=[CH:16][CH:15]=1>C1(C)C=CC=CC=1>[O:24]1[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][C:4]=2[CH:3]=[CH:2][NH:1]1

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 70051-NaphtholHCID 83756Aminopropyltrimethoxysilane

Product 1

HCID 17845026BenzoxazinesYield 80%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

This compound was prepared according to the method described in previous examples using 3-aminopropyltrimethoxysilane (17.9 g, 100 mmole), paraformaldehyde (6.3 g, 210 mmole), 1-naphthol (14.4 g, 100 mmole), and toluene (200 ml). The final product was obtained as a viscous liquid. The yield was 80% of theory.

Workup

  1. customThis compound was prepared

Sources & evidence

ORD record
ord-c81baa594f844ee78f8115874d64300c
Source dataset
uspto-grants-2004_06
Patent number
US06743852B2

Linked notes

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