JPS5657761A - Preparation of methylenedicarbanilate - Google Patents
Preparation of methylenedicarbanilateInfo
- Publication number
- JPS5657761A JPS5657761A JP13327379A JP13327379A JPS5657761A JP S5657761 A JPS5657761 A JP S5657761A JP 13327379 A JP13327379 A JP 13327379A JP 13327379 A JP13327379 A JP 13327379A JP S5657761 A JPS5657761 A JP S5657761A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- carbanilate
- formaldehyde
- brφnsted
- methylenedicarbanilate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To obtain the titled compound which is a synthetic intermediate for a raw material of polyurethane industrially and advantageously, by reacting a carbanilate with formaldehyde in the presence of a Brϕnsted or Lewis acid having a specific acid strength.
CONSTITUTION: A carbanilate of the formula (R is 1W4C alkyl or phenyl group; X, Y and Z are Hs, halogens, NO2s, etc.) is reacted with formaldehyde in the presence of a catalyst to give a methylenedicarbanilate. A brϕnsted acid, e.g. sulfuric or hydrochloric acid, or a Lewis acid, e.g. BF3 or PF5, having an acid strength ≤-3.0 as the acidity function value Ho is used in an amount of 0.1W500mmol per mol the carbanilate. The reaction is preferably carried out in a solvent, e.g. pentane, at room temperature to 150°C.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13327379A JPS5657761A (en) | 1979-10-16 | 1979-10-16 | Preparation of methylenedicarbanilate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13327379A JPS5657761A (en) | 1979-10-16 | 1979-10-16 | Preparation of methylenedicarbanilate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657761A true JPS5657761A (en) | 1981-05-20 |
Family
ID=15100765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13327379A Pending JPS5657761A (en) | 1979-10-16 | 1979-10-16 | Preparation of methylenedicarbanilate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657761A (en) |
-
1979
- 1979-10-16 JP JP13327379A patent/JPS5657761A/en active Pending
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