Formaldehyde → Benzoxazines

HRID 351954Notes

Reaction equation

HRID 351954 reaction equation
[CH2:1]([NH2:4])[CH2:2]N.CO[Si](CCC[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[OH:21])(OC)OC.C=O>C1(C)C=CC=CC=1>[O:21]1[C:16]2[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=2[CH:2]=[CH:1][NH:4]1

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 3301EthylenediamineHCID 69054133HCID 69054133, compound

Product 1

HCID 17845026Benzoxazines

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

The desired benzoxazine was prepared from the reaction of ethylene diamine (0.9 g, 15 mmole), 2-[(trimethoxysilyl)propyl]phenol (7.68 g, 30 mmole, prepared as described in Example 12A), paraformaldehyde (2.1 g, 70 mmole), and toluene (20 ml). The final product was a viscous liquid. The yield was 65% of theory.

Sources & evidence

ORD record
ord-9b82fafd1dd74792baca7c1620a3874e
Source dataset
uspto-grants-2004_06
Patent number
US06743852B2

Reaction notes

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