1,4-Benzodioxin-2-carbonyl chloride, 2,3-dihydro-

1,4-Benzodioxin-2-carbonyl chloride, 2,3-dihydro- - Names and Identifiers

Name	2,3-dihydro-1,4-benzodioxine-2-carbonyl chloride
Synonyms	1,4-BENZODIOXAN-2-CARBONYL CHLORIDE 2,3-DIHYDRO-1,4-BENZODIOXINE-2-CARBONYL CHLORIDE 2,3-DIHYDROBENZO[1,4]DIOXINE-2-CARBONYL CHLORIDE 2,3-dihydro-1,4-benzodioxine-2-carbonyl chloride 1,4-Benzodioxin-2-carbonyl chloride, 2,3-dihydro- 2,3-dihydrobenzo[b][1,4]dioxine-2-carbonyl chloride
CAS	3663-81-8
InChI	InChI=1/C9H7ClO3/c10-9(11)8-5-12-6-3-1-2-4-7(6)13-8/h1-4,8H,5H2

1,4-Benzodioxin-2-carbonyl chloride, 2,3-dihydro- - Physico-chemical Properties

Molecular Formula	C9H7ClO3
Molar Mass	198.6
Density	1.374±0.06 g/cm3(Predicted)
Melting Point	56-59°C
Boling Point	279.9±39.0 °C(Predicted)
Flash Point	123.2°C
Vapor Presure	0.00391mmHg at 25°C
Refractive Index	1.556

1,4-Benzodioxin-2-carbonyl chloride, 2,3-dihydro- - Risk and Safety

Risk Codes	R34 - Causes burns R51 - Toxic to aquatic organisms R22 - Harmful if swallowed
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
UN IDs	3261
Hazard Note	Irritant

1,4-Benzodioxin-2-carbonyl chloride, 2,3-dihydro- - Introduction

2,3-dihydro-1, chloride, also known as 2,3-dihydro-1, chloride, is an organic compound. Its nature is as follows:

1. Appearance: 2,3-dihydro-1, chloride is a colorless to pale yellow liquid.

2. Solubility: It can be dissolved in many organic solvents, such as ether, methanol and dichloromethane.

3. instability: it may decompose in the presence of high temperature, light or oxygen.

Usage:
The main use of
2,3-dihydro-1, chloride is as a reagent or intermediate in organic synthesis. It is commonly used in the synthesis of other chlorine-containing compounds and can be used as a reagent for cross-coupling reactions.

Preparation Method:

The method for preparing 2,3-dihydro-1, chloride generally involves the oxyacylation reaction of benzodioxane. The specific steps include adding carbonous chloride, cuprous chloride or an imine base salt to benzodioxane, and then reacting by heating to obtain the target product. This process needs to be carried out under the protection of inert gas.

Safety Information:

2,3-dihydro-1, chloride is an irritant compound. Care should be taken to prevent skin contact and inhalation. Wear protective gloves, goggles and masks during use. In the need to heat the reaction, should pay attention to the fire and ventilation conditions, in order to avoid the generation of toxic gases.

Last Update：2024-04-09 02:00:46