2,3-dihydro-1-benzothiophen-3-one
1-BENZOTHIOPHEN-3(2H)-ONE
CAS: 130-03-0
Molecular Formula: C8H6OS
2,3-dihydro-1-benzothiophen-3-one - Names and Identifiers
| Name | 1-BENZOTHIOPHEN-3(2H)-ONE |
| Synonyms | 1-BENZOTHIOPHEN-3-OL 2H-1-benzothiophen-3-one 1-BENZOTHIOPHEN-3(2H)-ONE benzo[b]thiophen-3(2H)-one 2,3-dihydro-1-benzothiophen-3-one |
| CAS | 130-03-0 |
2,3-dihydro-1-benzothiophen-3-one - Physico-chemical Properties
| Molecular Formula | C8H6OS |
| Molar Mass | 150.2 |
| Density | 1.311±0.06 g/cm3(Predicted) |
| Melting Point | 230 °C |
| Boling Point | 129-130 °C(Press: 3 Torr) |
| Storage Condition | Sealed in dry,Store in freezer, under -20°C |
2,3-dihydro-1-benzothiophen-3-one - Upstream Downstream Industry
| Downstream Products | 3-Bromo-1-benzothiophene Vat Red 41 sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate |
2,3-dihydro-1-benzothiophen-3-one - Reference Information
| Application | 1-benzothiophene-3 (2H)-one is an organic intermediate, it can be prepared by reacting 2-carboxymethylthiobenzoic acid as a starting material. Can be used for the preparation of fluorescent red 5B, fluorescent red 5B is a blue red oil soluble solvent pigment, has good heat resistance, light resistance, high color strength, bright color; can be used for a variety of resin coloring. |
| preparation | synthesis of 1-benzothiophene-3 (2H)-One: weigh 38kg of 2-carboxymethylthiobenzoic acid and 33kg of sodium hydroxide according to the ratio, mix the above raw materials evenly in the closed-loop kettle, heat to 180 ℃, and then carry out the closed-loop reaction, the reaction time of the ring closure reaction was 9 hours. After the end of the ring-closing reaction, add 75kg of water to dilute, dilute the solution for solid-liquid separation, remove insoluble matter and collect the filtrate, prepared 1-benzothiophene-3 (2H)-Aqueous solutions of ketones. |
Last Update：2024-04-10 22:29:15
2,3-dihydro-1-benzothiophen-3-one - Nature
| storage conditions | Sealed in dry,Store in freezer, under -20°C |
Last Update：2024-04-09 20:45:29
2,3-dihydro-1-benzothiophen-3-one - Uses and synthesis methods
application
1-benzothiophene-3 (2H)-one is an organic intermediate, which can be prepared by reaction of 2-carboxymethyl thiobenzoic acid as a starting material. It can be used to prepare fluorescent red 5B. Fluorescent red 5B is an oil-soluble solvent pigment with blue light, which has good heat resistance, light resistance, high tinting power and bright color. It can be used for coloring various resins.
Preparation
synthesis of 1-benzothiophene-3 (2H)-ketone: 38kg of 2-carboxymethyl thiobenzoic acid and 33kg of sodium hydroxide are weighed according to the ratio, the above raw materials are uniformly mixed in a closed-loop kettle, heated to 180 ℃, and then closed-loop reaction is carried out, and the reaction time of the closed-loop reaction is 9 hours. After the closed-loop reaction, add 75kg of water to dilute, the diluted solution for solid-liquid separation, remove the insoluble matter and collect the filtrate to prepare an aqueous solution of 1-benzothiophene-3 (2H)-ketone.
Last Update：2024-04-09 21:01:54
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CAS: 130-03-0
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Product Name: 1-BENZOTHIOPHEN-3(2H)-ONE Visit Supplier Webpage Request for quotation
CAS: 130-03-0
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 130-03-0
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History
Downstream Products for 2,3-dihydro-1-benzothiophen-3-one
3-Bromo-1-benzothiophene
Vat Red 41
sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate
Vat Red 41
sodium 2-[3-(4-sulfonato-o-tolyliminio)-6-o-toluidino-3H-xanthen-9-yl]benzoate