3-环戊烯甲酸
3-Cyclopentenecarboxylic Acid
CAS: 7686-77-3
Molecular Formula: C6H8O2
3-环戊烯甲酸 - Names and Identifiers
3-环戊烯甲酸 - Physico-chemical Properties
| Molecular Formula | C6H8O2 |
| Molar Mass | 112.13 |
| Density | 1.084 g/mL at 25 °C (lit.) |
| Boling Point | 215 °C (lit.) |
| Flash Point | >230°F |
| Vapor Presure | 0.0282mmHg at 25°C |
| Appearance | clear liquid |
| Specific Gravity | 1.084 |
| Color | Colorless to Light yellow to Light orange |
| pKa | 4.62±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | n20/D 1.469(lit.) |
3-环戊烯甲酸 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 3265 |
| WGK Germany | 3 |
| HS Code | 29162090 |
| Hazard Note | Irritant |
| Hazard Class | 8 |
| Packing Group | III |
3-环戊烯甲酸 - Reference Information
| Introduction | 3-cyclopentene-1-carboxylic acid is a colorless transparent liquid at normal temperature and pressure, it is soluble in highly polar organic solvents, such as dimethyl sulfoxide and the like, and is a common intermediate in organic synthesis. |
| Use | 3-cyclopentene-1-carboxylic acid as a common intermediate in organic synthesis, first, the carboxyl group can undergo a series of transformations, and the carboxyl group can be converted into an acid chloride, an amide, an ester group, and the like. Further, the double bond in the structure can be used for hydrogen acceptors to participate in many catalytic reactions for releasing hydrogen gas for receiving hydrogen gas. In addition, the double bond can also be added to liquid bromine under certain conditions, and the addition reaction of bromine can obtain a trans Dibromo compound, the carboxyl groups in the structure do not affect the efficiency of the bromination reaction. |
| synthesis method | for the synthesis of 3-cyclopentene-1-carboxylic acid, the synthesis method currently consulted is to start from dienes and carry out the corresponding intramolecular olefin metathesis reaction through the action of ruthenium catalyst, and the obtained product is a ring-closed mono-olefin compound. In addition, there are also related reports that starting from 3-cyclopentene-1, 1-dicarboxylic acid dimethyl ester, firstly, the ester group is hydrolyzed under alkaline conditions, heating decarboxylation of the diacid under acidic conditions then takes place to obtain the desired product. |
Last Update：2024-04-09 15:16:52
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View History
3-环戊烯甲酸
DL-2-氨基-4-巯基丁酸 1,4-硫内酯 盐酸盐
copper(2+) dibromide
8-Oxa-3-azabicyclo[3.2.1]octane monohydrochloride
双(五氟苯基)碳酸
N-BUTYLLITHIUM, 10.5M IN HEXANE
DL-2-氨基-4-巯基丁酸 1,4-硫内酯 盐酸盐
copper(2+) dibromide
8-Oxa-3-azabicyclo[3.2.1]octane monohydrochloride
双(五氟苯基)碳酸
N-BUTYLLITHIUM, 10.5M IN HEXANE