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381438

苯甲醛二甲缩醛

Name: 苯甲醛二甲缩醛
Brand: ALDRICH

95%

别名:

α,α-二甲氧基甲苯

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关于此项目

线性分子式:

C₆H₅CH(OCH₃)₂

化学文摘社编号:

1125-88-8

分子量:

152.19

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

24863815

EC Number:

214-413-0

Beilstein/REAXYS Number:

2044501

MDL number:

MFCD00008491

Assay:

95%

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属性

Quality Level

100

assay

95%

refractive index

n20/D 1.493 (lit.)

bp

87-89 °C/18 mmHg (lit.)

density

1.014 g/mL at 25 °C (lit.)

functional group

acetal, ether, phenyl

SMILES string

COC(OC)c1ccccc1

InChI

1S/C9H12O2/c1-10-9(11-2)8-6-4-3-5-7-8/h3-7,9H,1-2H3

InChI key

HEVMDQBCAHEHDY-UHFFFAOYSA-N

说明

General description

Benzaldehyde dimethyl acetal is an organic building block. Pyridinium tosylate-catalyzed acetal exchange reaction between benzaldehyde dimethyl acetal and 6-O-(tert-butyldiphenylsilyl)-1,2-O-isopropylidene-α-D-glucofuranose is reported to afford 3,5-O-benzylidene-1,2-O-isopropylidene-α-D-glucofuranose. The kinetics of the hydrolysis of benzaldehyde dimethyl acetal over amberlite IR-120 has been studied using a circulated batch reactor in dioxane. One-pot tandem conversion of benzaldehydedimethylacetal to trans-1-nitro-2-phenylethylene has been reported.

Application

Benzaldehyde dimethyl acetal is suitable for use in the synthesis of 4,6-dihydroxy sugar, required for the total synthesis of Porphyromonas gingivalis 381 derived lipid A. It may be used in the preparation of 1-O-methyl-2,3-di-O-galloyl-β-D-glucose.

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pictograms

GHS07

signalword

Warning

hcodes

H302

pcodes

P301 + P312 + P330

Hazard Classifications

Acute Tox. 4 Oral

存储类别

10 - Combustible liquids

wgk

WGK 3

flash_point_f

156.2 °F - closed cup

flash_point_c

69 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Mesoporous silica with site-isolated amine and phosphotungstic acid groups: a solid catalyst with tunable antagonistic functions for one-pot tandem reactions.

N Raveendran Shiju et al.

Angewandte Chemie (International ed. in English), 50(41), 9615-9619 (2011-09-16)

Specific synthesis and stereochemical assignment of the diastereomeric 3,5-O-benzylidene-1,2-O-isopropylidene-alpha-D-glucofuranose isomers.

K Akerfeldt et al.

Carbohydrate research, 158, 137-145 (1986-12-15)

Pyridinium tosylate-catalyzed acetal exchange between benzaldehyde dimethyl acetal and 6-O-(tert-butyldiphenylsilyl)-1,2-O-isopropylidene-alpha-D-glucofu ranose was investigated as an alternative to the original procedure of Brigl and Grüner (condensation of a D-glucose triol with benzaldehyde under zinc halide catalysis) for synthesis of 3,5-O-benzylidene-1,2-O-isopropylidene-alpha-D-glucofuranose. The

Immunobiological activities of a chemically synthesized lipid A of Porphyromonas gingivalis.

T Ogawa et al.

FEMS immunology and medical microbiology, 28(4), 273-281 (2000-07-13)

A synthetic lipid A of Porphyromonas gingivalis strain 381 (compound PG-381), which is similar to its natural lipid A, demonstrated no or very low endotoxic activities as compared to Escherichia coli-type synthetic lipid A (compound 506). On the other hand

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货号	GTIN
381438-100ML	04061831961072