5694-72-4

Basic information

• Product Name: 2-benzyl-1,3-dioxolan-4-ylmethanol
• Synonyms: 2-benzyl-1,3-dioxolan-4-ylmethanol;1,3-Dioxolane-4-methanol, 2-(phenylmethyl)-;PHENYLACETALDEHYDEGLYCEROLACETAL;2-(phenylmethyl)-1,3-Dioxolane-4-methanol;2-(phenylmethyl)-3-dioxolane-4-methanol;2-benzyl-3-dioxolane-4-methanol;2-benzyl-4-hydroxymethyl-1,3-dioxane;2-benzyl-4-hydroxymethyl-3-dioxolane
• CAS NO: 5694-72-4
• Molecular Formula: C₁₁H₁₄O₃
• Molecular Weight: 194.22706
• EINECS: 227-164-8
• Mol File: 5694-72-4.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 290.67°C (rough estimate)
• Flash Point: 156.5°C
• Appearance: /
• Density: 1.1130 (rough estimate)
• Refractive Index: 1.5030 (estimate)
• CAS DataBase Reference: 2-benzyl-1,3-dioxolan-4-ylmethanol(CAS DataBase Reference)
• NIST Chemistry Reference: 2-benzyl-1,3-dioxolan-4-ylmethanol(5694-72-4)
• EPA Substance Registry System: 2-benzyl-1,3-dioxolan-4-ylmethanol(5694-72-4)

Safety Data

• Hazardous Substances Data: 5694-72-4(Hazardous Substances Data)

Usage

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

InChI:InChI=1/C11H14O3/c12-7-10-8-13-11(14-10)6-9-4-2-1-3-5-9/h1-5,10-12H,6-8H2

Upstream product

• 4747-15-3 1-(2-methoxyvinyl)benzene 
• 56-81-5 glycerol 
• 122-78-1 phenylacetaldehyde 

Relevant articles and documents

Method for preparing ketal glycerine and/or acetal glycerine by catalyzing glycerine

The invention relates to a method for preparing ketal glycerine and/or acetal glycerine by catalyzing glycerine. The method comprises the following steps: contacting glycerine and a reaction raw material with a catalyst in a reactor, and reacting to obtain a product containing ketal glycerine and/or acetal glycerine, wherein the reaction raw materials contains aldehyde and/or ketone, the molar ratio of glycerine to aldehyde and/or ketone is 1:(1-10), the reaction temperature is 30-180 DEG C, the reaction time is 1-10 hours, the catalyst contains a tin-silicon molecular sieve, and the weight ratio of glycerine to the tin-silicon molecular sieve based on dry basis weight is (1-40):1, the tin-silicon molecular sieve contains a silicon element, a tin element and an oxygen element, a cavity orcavity structure is formed in all or part of crystal grains, the total specific surface area is larger than or equal to 300 m/g, and the proportion of the external specific surface area to the total specific surface area is larger than or equal to 10%. The method provided by the invention has high aldehyde/ketone conversion rate and high acetal/ketal glycerine selectivity.

Clay catalysed rapid valorization of glycerol towards cyclic acetals and ketals

Biodiesel production usually results in a huge amount of glycerol, raising a critical need to transform it into high value products. The present study highlights that solvent-free, conventional thermal activation, and non-conventional microwave/ultrasonic activation in the liquid phase are able to selectively transform glycerol into cyclic acetals and ketals using an optimised acid activated clay catalyst. Several parameters for the acid activation of bentonite clay were optimized under mild reaction conditions with a high concentration of clay (6%) and varying the acid concentration in the range of 6 to 15 N. The acid-activated clay samples were characterized by XRD, FT-IR, BET, and XRF analysis. The active sites of the catalyst were examined by volumetric titration and confirmed by pyridine adsorbed FT-IR and advanced NH3-TPD analyses. The activation performed at relatively mild conditions, i.e.; 6 N H2SO4 and 6% w/v clay, reproducibly resulted in an improved surface area (180 m2 g-1) and surface acidity (23 mg KOH g-1), with superior quantitative Br?nsted and Lewis acidic sites. Moreover, the eco-friendly process involving a catalyst, microwave, or ultra-sonication were successfully utilized to achieve a commercially valuable hyacinth fragrance, in addition to furan-based fuel additive precursors exhibiting a high conversion of glycerol and excellent selectivity within much less activation time (2 min).