2749-70-4

Basic information

• Product Name: Preventol D2
• Synonyms: Preventol D2;1,1'-[Methylenebis(oxymethylene)]bisbenzene;Bis(benzyloxy)methane;Formaldehyde dibenzyl acetal
• CAS NO: 2749-70-4
• Molecular Formula: C₁₅H₁₆O₂
• Molecular Weight: 228.29
• Mol File: 2749-70-4.mol
• Article Data: 21

Chemical Properties

• Boiling Point: 314.1°Cat760mmHg
• Flash Point: 116.9°C
• Appearance: /
• Density: 1.075g/cm³
• CAS DataBase Reference: Preventol D2(CAS DataBase Reference)
• NIST Chemistry Reference: Preventol D2(2749-70-4)
• EPA Substance Registry System: Preventol D2(2749-70-4)

Safety Data

• Hazardous Substances Data: 2749-70-4(Hazardous Substances Data)

Usage

General Description

Preventol D2, also known as 2-n-octyl-4-isothiazolin-3-one, is a chemical compound commonly used as a preservative and biocide in a variety of industrial and consumer products. It is effective in preventing the growth of bacteria, fungi, and algae, making it a valuable ingredient in paints, adhesives, metalworking fluids, and personal care products. Preventol D2 works by disrupting the cell membranes of microorganisms, ultimately leading to their death and inhibiting further growth. While it has shown to be an effective and versatile biocide, it is important to handle and use Preventol D2 with caution, as it may cause skin and eye irritation and should be stored and disposed of properly to avoid environmental contamination.

Upstream product

• 625-56-9 Chloromethyl acetate 
• 100-51-6 benzyl alcohol 
• 20757-83-9 [1,3,5,7,2,6]tetroxadithiocane 2,2,6,6-tetraoxide 
• 40510-88-1 1-acetoxy-2-chloromethoxyethane 
• 50-00-0 formaldehyd 
• 75-09-2 dichloromethane 
• 20194-18-7 sodium phenyl-methanolate 
• 124-38-9 carbon dioxide 
• 67-68-5 dimethyl sulfoxide 
• 74-95-3 1,1-dibromomethane 
• 31600-55-2 benzyl methoxymethyl ether 
• 109-87-5 Dimethoxymethane 
• 3613-53-4 1-((benzyloxy)methyl)-4-methoxybenzene 
• 3587-60-8 Benzyloxymethyl chloride 

Downstream Products

• 14642-79-6 benzyloxy-trimethylsilane 
• 17482-09-6 benzyl iodomethyl ether 
• 343219-59-0 2-benzyloxymethyl-6-methylcyclohexanone 
• 76886-35-6 3-(benzyloxy)-2-methyl-1-phenylpropan-1-one 
• 121097-22-1 (2S,5S)-2-<(1S)-1-benzyl-2-(benzyloxy)ethyl>-5-methyl-1,3-dioxolan-4-one 
• 133815-66-4 (2S,5R)-5-cyclohexyl-2-<(1R)-1-benzyl-2-(benzyloxy)ethyl>-1,3-dioxolan-4-one 
• 121097-21-0 (2R,5R)-5-cyclohexyl-2-<(1R)-1-benzyl-2-(benzyloxy)ethyl>-1,3-dioxolan-4-one 
• 112026-13-8 (5S,6S,7S)-7-Benzyloxymethyl-8-oxo-5-(3,4,5-trimethoxy-phenyl)-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxole-6-carboxylic acid ethyl ester 
• 121097-22-1 (2R,5R)-2-((R)-1-Benzyloxymethyl-2-phenyl-ethyl)-5-methyl-[1,3]dioxolan-4-one 
• 76886-30-1 (+/-)-2-(benzyloxymethyl)cyclopentanone 
• 93298-64-7 1-((2R,4S,5R)-5-Benzyloxymethoxymethyl-4-hydroxy-tetrahydro-furan-2-yl)-5-trifluoromethyl-1H-pyrimidine-2,4-dione 
• 93298-65-8 1-((2R,4S,5R)-4-Benzyloxymethoxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-5-trifluoromethyl-1H-pyrimidine-2,4-dione 
• 93298-66-9 1-((2R,4S,5R)-4-Benzyloxymethoxy-5-benzyloxymethoxymethyl-tetrahydro-furan-2-yl)-5-trifluoromethyl-1H-pyrimidine-2,4-dione 
• 80925-22-0 (R)-(+)-5-benzyloxy-2,4-dimethyl-(E)-2-pentenol 

Relevant articles and documents

Metathesis reaction of formaldehyde acetals: An easy entry into the dynamic covalent chemistry of cyclophane formation

The acid-catalyzed transacetalation of formaldehyde acetals (formal metathesis) is a suitable reaction for the generation of well-behaved Dynamic Libraries of cyclophane formals. The composition of the equilibrated mixtures solely depends on concentration

Utilization of Formic Acid as C1 Building Block for the Ruthenium-Catalyzed Synthesis of Formaldehyde Surrogates

Dialkoxymethanes are becoming increasingly important as fuel additives, formaldehyde surrogates, and chemical intermediates, but the effective synthesis remains challenging. Herein, the catalytic synthesis of dialkoxymethane products using a molecular catalyst is reported. The catalytic system, comprising the [Ru(triphos)(tmm)] in combination with the Lewis acid Al(OTf)3, enables the direct synthesis of dialkoxymethane products with formic acid as C1 building block in high to excellent turnover numbers.

Nickel-catalyzed direct synthesis of dialkoxymethane ethers

221A simple and efficient method for the preparation of dialkoxymethane ethers (oxymethylene ethers) from alcohols and paraformaldehyde in the presence of commercially available nickel(II) salt is described. The reaction proceeds readily under neutral, solvent-free conditions using paraformaldehyde as a C 1 source. The present strategy has a broad substrate scope including aliphatic (both primary and secondary) and aromatic alcohols and provides a benign method for the preparation of symmetrical dialkoxymethanes in good yields (up to 89%). Graphical Abstract: SYNOPSIS A facile nickel-catalyzed synthesis of dialkoxymethane ethers from alcohols and paraformaldehyde using inexpensive, commercially available NiBr 2 is reported. The reaction proceeds readily under mild, neutral and solvent-free conditions. [Figure not available: see fulltext.].