4065-92-3

Basic information

• Product Name: 1,2-Cyclopentanediol
• Synonyms: 1,2-Cyclopentandiol
• CAS NO: 4065-92-3
• Molecular Formula: C₅H₁₀O₂
• Molecular Weight: 102.1317
• Mol File: 4065-92-3.mol
• Article Data: 32

Chemical Properties

• Appearance: /
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 1,2-Cyclopentanediol(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-Cyclopentanediol(4065-92-3)
• EPA Substance Registry System: 1,2-Cyclopentanediol(4065-92-3)

Safety Data

• Hazardous Substances Data: 4065-92-3(Hazardous Substances Data)

Usage

General Description

1,2-Cyclopentanediol is a cyclic diol compound with the molecular formula C5H10O2. It is a colorless, odorless liquid that is soluble in water and ethanol. 1,2-Cyclopentanediol is primarily used as a building block in the synthesis of various chemicals and pharmaceuticals. It is also used as a solvent in some chemical reactions and as an intermediate in the production of fragrances and flavors. The compound has potential applications in the fields of polymer science and material chemistry due to its ability to form complex organic molecules. However, it is important to handle 1,2-Cyclopentanediol with caution as it can cause irritation to the skin and eyes upon contact.

Upstream product

• 29974-65-0 1,2-dibromo-cyclopentane 
• 285-67-6 Cyclopentene oxide 
• 64-19-7 acetic acid 
• 142-29-0 cyclopentene 
• 67-63-0 isopropyl alcohol 
• 67-56-1 methanol 
• 64-17-5 ethanol 
• 75-65-0 tert-butyl alcohol 
• 933-06-2 1-acetoxycyclopentene 
• 7732-18-5 water 
• 285-67-6 (1S,5R)-6-Oxa-bicyclo[3.1.0]hexane 
• 124-38-9 carbon dioxide 

Downstream Products

• 97078-05-2 1,2-bis-phenylcarbamoyloxy-cyclopentane 
• 37854-33-4 cis-1,2-bisbenzoyloxycyclopentane 
• 2206-54-4 trans-1,2-(diphenylcarbonyloxy)cyclopentane 
• 20520-67-6 (+/-)-cis-1-acetoxy-2-hydroxycyclopentane 
• 20520-67-6 trans-2-acetoxycyclopentanol 
• 111-30-8 Glutaraldehyde 
• 101836-57-1 2-(benzyloxy)cyclopentanol 
• 101836-58-2 α-benzyloxycyclopentanone 
• 285-67-6 Cyclopentene oxide 
• 35505-63-6 1-Ethynyl-2-methoxy-cyclopentanol 
• 35505-66-9 2-Methoxy-1-phenylethynyl-cyclopentanol 
• 35394-09-3 2-methoxycyclopentanone 
• 1453267-75-8 2-chloro-4-(6-hydroxy-1-methyl-4-oxo-2-thioxo-1,3-diazaspiro[4.4]nonan-3-yl)-3-methylbenzonitrile 
• 1453266-48-2 2-chloro-4-((5R,6S)-6-hydroxy-1-methyl-2,4-dioxo-1,3-diazaspiro[4.4]nonan-3-yl)-3-methylbenzonitrile 

Relevant articles and documents

The kinetics of the reaction between cyclopentene and aqueous hydrogen peroxide under phase-transfer catalysis

The kinetics of the reaction between cyclopentene and an aqueous solution of hydrogen peroxide under phase-transfer catalysis conditions has been studied. The activation energies of the successive stages of cyclopentene epoxidation to 1,2-epoxycyclopentane and the hydration of the resulting epoxide to 1,2-cyclopentanediol have been found, and the orders of the reactions with respect to the reactants have been determined. A mathematical model of the process that adequately describes the available experimental data in the entire range of reactant concentrations has been proposed.

Method for catalyzing catalytic oxidation reaction of cyclopentene by vacancy silicon-tungsten heteropolyacid salt catalyst

The invention relates to a method for catalyzing a catalytic oxidation reaction of cyclopentene by utilizing a vacancy silicon-tungsten heteropolyacid salt catalyst. The invention aims to provide a process method for preparing glutaraldehyde and 1, 2-cyclopentanediol by carrying out catalytic oxidation on cyclopentene by using a two-vacancy silicon-tungsten heteropolyacid salt catalyst, which is small in environmental pollution, high in catalytic activity, high in yield and easy in recycling of the catalyst. According to the technical scheme, the method comprises the following steps of: (1) weighing cyclopentene, a heteropolyacid catalyst and 30% hydrogen peroxide according to a reaction molar ratio of 1: (0.0002-0.0020): (0.5-4.0), adding a quantitative reaction solvent, mixing well, controlling the temperature range to be 30-55 DEG C, reacting for 0.5-8 hours, and stirring until the reaction is finished; (2) carrying out a rectification process on a mixture generated by the reaction to obtain glutaraldehyde and 1, 2-cyclopentanediol; and (3) carrying out reduced pressure distillation on the reaction liquid to remove the solvent, and filtering, washing, vacuum-drying, collecting and recycling the vacancy silicon-tungsten heteropolyacid catalyst.

Tandem Lewis acid catalysis for the conversion of alkenes to 1,2-diols in the confined space of bifunctional TiSn-Beta zeolite

The generation of multifunctional isolated active sites in zeolite supports is an attractive method for integrating multistep sequential reactions into a single-pass tandem catalytic reaction. In this study, bifunctional TiSn-Beta zeolite was prepared by a simple and scalable post-synthesis approach, and it was utilized as an efficient heterogeneous catalyst for the tandem conversion of alkenes to 1,2-diols. The isolated Ti and Sn Lewis acid sites within the TiSn-Beta zeolite can efficiently integrate alkene epoxidation and epoxide hydration in tandem in a zeolite microreactor to achieve one-step conversion of alkenes to 1,2-diols with a high selectivity of >90%. Zeolite confinement effects result in high tandem rates of alkene epoxidation and epoxide hydration as well as high selectivity toward the desired product. Further, the novel method demonstrated herein can be employed to other tandem catalytic reactions for sustainable chemical production.