AI3-37787
Cyclobutanone
CAS: 1191-95-3
Molecular Formula: C4H6O
AI3-37787 - Names and Identifiers
| Name | Cyclobutanone |
| Synonyms | NSC 87632 AI3-37787 Cyclobutanone |
| CAS | 1191-95-3 |
| EINECS | 214-745-6 |
| InChI | InChI=1/C4H6O/c5-4-2-1-3-4/h1-3H2 |
| InChIKey | SHQSVMDWKBRBGB-UHFFFAOYSA-N |
AI3-37787 - Physico-chemical Properties
| Molecular Formula | C4H6O |
| Molar Mass | 70.0898 |
| Density | 1.038g/cm3 |
| Melting Point | -50.9℃ |
| Boling Point | 96.5°C at 760 mmHg |
| Flash Point | 10°C |
| Water Solubility | INSOLUBLE |
| Vapor Presure | 43.4mmHg at 25°C |
| Appearance | Form Liquid, color Clear colorless to slightly yellow |
| Storage Condition | 2-8°C |
| Refractive Index | 1.462 |
| Physical and Chemical Properties | Storage Condition 2-8°C Form Liquid Color Clear colorless to slightly yellow |
AI3-37787 - Risk and Safety
| Hazard Symbols | F - Flammable |
| Risk Codes | R11 - Highly Flammable |
| Safety Description | S16 - Keep away from sources of ignition. S29 - Do not empty into drains. S33 - Take precautionary measures against static discharges. S9 - Keep container in a well-ventilated place. |
| UN IDs | UN 1224 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29142900 |
| Hazard Class | 3 |
| Packing Group | II |
AI3-37787 - Upstream Downstream Industry
AI3-37787 - Nature
| melting point | -50.9 °C |
| boiling point | 99°C (lit.) |
| density | 0.938 g/mL at 25°C (lit.) |
| refractive index | n20/D 1.421(lit.) |
| flash point | 50 °F |
| storage conditions | 2-8°C |
| morphology | Liquid |
| color | Clear colorless to slightly yellow |
| Specific gravity | 0.938 |
| water solubility | INSOLUBLE |
| BRN | 1560289 |
| InChIKey | SHQSVMDWKBRBGB-UHFFFAOYSA-N |
| EPA chemical information | Cyclobutanone (1191-95-3) |
Last Update：2024-04-09 20:52:54
AI3-37787 - Uses and synthesis methods
Cyclic ketone is a compound with a carbonyl group on the carbon ring. Such as cyclobutanone, cyclopentanone, etc.
Cyclobutanone is the starting substance for the synthesis of 1-aminocyclobutanoic acid. The solvent of water-based ink is generally deionized water as the main solvent, and then an appropriate amount of cyclobutanone organic solvent is added.
The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new synthetic block 2-alkylene cyclobutanone.
Cyclopentanone is an organic chemical raw material. It is a raw material for the medicine and perfume industry. It can prepare a new type of perfume hydrogen jasmonate methyl ester. It is also used in rubber synthesis, biochemical research and as an insecticide.
From cyclopentanone and n-valeraldehyde as raw materials, it is first condensed by aldol and then removed from water to form amylcyclopentanone, and then selectively catalyzed hydrogenation to obtain amylcyclopentanone.
Using n-hexanal and cyclopentanone as raw materials, first condensation, and then selective hydrogenation to prepare hexylcyclopentanone.
use
The starting substance for the synthesis of 1-aminocyclobuformic acid.
production method
1. Preparation method:
5,9-dithiolol [3,5] nonane (3): in a reaction bottle equipped with a stirrer, nitrogen is introduced, dry tetrahydrofuran 1.25L,1, 3-dithiane (2)50g(0.417mol) is added, and dry ice-methanol is cooled to -20 ℃ under stirring. After 2h, the temperature was reduced to -75 ℃, 65.5g(0.417mol) of 1-bromo -3-chloropropane was added within 10min, the temperature was increased to -30 ℃ within 2h, and then slowly increased to room temperature. Then cool the reaction solution to -75 ℃, slowly add n-butyl lithium n-hexane solution 0.44mol, rise to room temperature again and react overnight. The solvent was distilled under reduced pressure at 50 ℃, and 300mL of water and 500mL of ether were added to the residue. Divide the ether layer, extract the water layer with 500mL ether, combine the ether layer, wash with water, dry with anhydrous potassium carbonate, evaporate the ether, and obtain the crude product. Decompression fractionation, collection of 65~75 ℃/133Pa fraction, 5,9-dithio spiro [3,5] nonane (3)44~57g, yield 65% ~ 84%. Cyclobutanone (1): 5,9-dithiolol [3,5] nonane (3)45g(0.28mol),900mL triethylene glycol and 150mL water are added to the reaction bottle equipped with a stirrer, a ventilation pipe (extending into the bottom of the bottle) and a distillation device (receiving the bottle to be cooled with ice bath solution), and 163g(0.6mol) of mercury chloride and 51.5g(0.3. After introducing nitrogen, the oil bath is slowly heated to 90 ℃, and then gradually heated to 110 ℃ within 2~3h. In this process, cyclobutanone and water are slowly steamed out. The distillate was saturated with sodium chloride and extracted four times with dichloromethane. The dichloromethane solution was combined, anhydrous sodium sulfate was dried, the solvent was distilled in a rotary evaporator, and then fractionated. The fraction at 95~100 ℃ was collected to obtain cyclobutanone ② (1)12~15.8g with a yield of 60% ~ 81%. Note: ① A variety of cyclic ketones can be synthesized by this method, and macrocyclic ketones can be synthesized by highly diluted method. It is also suitable for synthesizing aldehydes and open-chain ketones.
Last Update：2024-04-09 20:44:15
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Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
CAS: 1191-95-3
Tel: +86-21-56795779
Email: charles7788@worldyachem.com
Mobile: +86-13651600618
QQ: 2850607228
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Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
Product Name: Cyclobutanone Request for quotation
CAS: 1191-95-3
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Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
CAS: 1191-95-3
Tel: 025-52110956
Email: lvmu@lskhsw.com
Mobile: 15195951328
QQ: 2468914230
Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
Featured ProductsSpot supply
Product Name: Cyclobutanone Request for quotationCAS: 1191-95-3
Tel: +86-25-52110956
Email: sam@liskonchem.com
Mobile: +8615161118236
QQ: 2698028200
Wechat: 17372769668
Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
Product Name: Cyclobutanone Request for quotation
CAS: 1191-95-3
Tel: +86-21-56795779
Email: charles7788@worldyachem.com
Mobile: +86-13651600618
QQ: 2850607228
Wechat: 13651600618
WhatsApp: +8613651600618
Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
CAS: 1191-95-3
Tel: +86-21-56795779
Email: charles7788@worldyachem.com
Mobile: +86-13651600618
QQ: 2850607228
Wechat: 13651600618
WhatsApp: +8613651600618
Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
Product Name: Cyclobutanone Request for quotation
CAS: 1191-95-3
Tel: 025-52110956
Email: lvmu@lskhsw.com
Mobile: 15195951328
QQ: 2468914230Send QQ message
Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
CAS: 1191-95-3
Tel: 025-52110956
Email: lvmu@lskhsw.com
Mobile: 15195951328
QQ: 2468914230
Descriptions:
Starting material for the synthesis of 1-aminocyclobutanoic acid. The aldol condensation reaction of cyclobutanone and aldehyde can directly synthesize a new type of synthetic block 2-alkylene cyclobu More
View History
Downstream Products for AI3-37787
Fenpropathrin
CYCLOBUTYLHYDRAZINE
1-Methylcyclobutanol
N-ISOPROPYL-2-PYRROLIDONE
4-(1-CYANOCYCLOBUTYLAMINO)-2-FLUORO-N-METHYLBENZAMIDE
CYCLOBUTYLHYDRAZINE
1-Methylcyclobutanol
N-ISOPROPYL-2-PYRROLIDONE
4-(1-CYANOCYCLOBUTYLAMINO)-2-FLUORO-N-METHYLBENZAMIDE