TECH
3-ETHYLAMINO-4-CRESOL
CAS: 120-37-6
Molecular Formula: C9H13NO
TECH - Names and Identifiers
TECH - Physico-chemical Properties
| Molecular Formula | C9H13NO |
| Molar Mass | 151.21 |
| Melting Point | 85-87 °C(lit.) |
| Boling Point | 135-140°C 3mm |
| Flash Point | 135-140°C/3mm |
| Appearance | Purple solid |
| Storage Condition | Room Temprature |
| MDL | MFCD00002382 |
| Use | Mainly used as dye intermediates |
TECH - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
TECH - Study on the synthesis of 3-ethylamino-4-cresol
from Wanfang
Author:
Abstract:
In this paper, N-ethyl o-toluidine was synthesized from o-toluidine by N-Alkylation at atmospheric pressure, the dye intermediate 3-ethylamino-4-cresol was synthesized by alkali fusion reaction.
Key words:
static mixer ethylene oxide phenol ethylene glycol phenyl ether
meeting name:
National Fine Chemical Youth Science and Technology academic exchange meeting
Meeting Time:
August 1, 1998
Last Update：2024-01-02 23:10:35
TECH - Preparation Method of basic red intermediate 3-ethylamino-p-cresol
from Palm Bridge research
Application (patent) number:
CN201110021759.4
application date:
January 19, 2011
Public/Announcement Number:
CN102134200A
applicant (patent):
Hebei Xingyu Chemical Co., Ltd.
inventor:
National and provincial code:
Hebei
Abstract:
The invention discloses a preparation method of 3-ethylamino-p-cresol, an intermediate of basic red, which mainly comprises several steps of alkylation, sulfonation and alkali fusion (I. E. Hydroxylation), by increasing the reaction temperature of the hydroxylation, the reaction time is shortened; The oxidation degree of the product is further reduced, and the yield of the product is increased from 55% to 65%, increase 10 percentage points; Slow down the stirring speed to save energy; Reduce the amount of potassium hydroxide, saving the production cost. The invention is used for preparing 3-ethylamino-p-cresol, which is an intermediate of basic red. The prepared product is used in the production process of advanced ink and paint as a coloring agent, which can increase the aging resistance of the product.
sovereignty:
A basic red intermediate 3? The preparation method of ethyl amino-p-cresol includes the steps of alkylation, sulfonation, alkali melting and the like, and is characterized in that the alkali melting step, I .e, potassium hydroxide in 245~255 ℃ high temperature, hydroxylation reaction, while the reaction of the reactants were stirred, 55~65H after the reaction, the use of hydrochloric acid on 3? Ethyl amino-p-cresol was acid-washed and neutralized to obtain the target product.
Last Update：2023-08-16 22:05:47
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