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2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE is a chemical compound with the molecular formula C12H24O3. It is an organic compound that consists of a trioxane ring with three propyl groups attached to it. 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE is known for its versatile applications across various industries due to its unique chemical structure and properties.

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  • 7580-12-3 Structure
  • Basic information

    1. Product Name: 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE
    2. Synonyms: Triisopropyl-s-trioxane;2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE;2,4,6-Triisopropyl-s-trioxane;2,4,6-Tris(1-methylethyl)-1,3,5-trioxane;Paraisobutyraldehyde;Sunsubly B;1,3,5-Trioxane, 2,4,6-triisopropyl-;1,3,5-Trioxane, 2,4,6-tris(1-methylethyl)-
    3. CAS NO:7580-12-3
    4. Molecular Formula: C12H24O3
    5. Molecular Weight: 216.31716
    6. EINECS: 231-479-6
    7. Product Categories: N/A
    8. Mol File: 7580-12-3.mol
  • Chemical Properties

    1. Melting Point: 64℃
    2. Boiling Point: 244.9 °C at 760 mmHg
    3. Flash Point: 80 °C
    4. Appearance: /
    5. Density: 0.916 g/cm3
    6. Vapor Pressure: 0.0463mmHg at 25°C
    7. Refractive Index: 1.424
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. CAS DataBase Reference: 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE(CAS DataBase Reference)
    11. NIST Chemistry Reference: 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE(7580-12-3)
    12. EPA Substance Registry System: 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE(7580-12-3)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 7580-12-3(Hazardous Substances Data)

7580-12-3 Usage

Uses

Used in Adhesives and Coatings Industry:
2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE is used as a crosslinking agent for the production of epoxy resins, which are essential components in the formulation of high-performance adhesives and coatings. Its ability to form strong crosslinks enhances the durability, chemical resistance, and mechanical properties of the final products.
Used in Electronic Materials Industry:
In the electronic materials industry, 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE serves as a crosslinking agent in the production of epoxy resins used for encapsulation and potting of electronic components. This helps protect the components from environmental factors, such as moisture and chemicals, and ensures their reliable performance.
Used in Polyurethane Foam Manufacturing:
2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE is used as a curing agent in the manufacturing of polyurethane foams. Its presence accelerates the reaction between isocyanates and polyols, resulting in the formation of a stable foam structure with desirable properties, such as low density, good mechanical strength, and excellent thermal insulation.
Used in Plasticizers Production:
2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE is also utilized in the production of plasticizers, which are additives used to increase the flexibility and workability of various types of plastics. 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE contributes to the development of plasticizers with improved performance characteristics, such as enhanced compatibility with polymers and reduced volatility.
Used in Pharmaceutical Industry:
2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE has potential applications in the pharmaceutical industry, where it can be used as an intermediate in the synthesis of various drug molecules. Its unique structure and reactivity make it a valuable building block for the development of new pharmaceutical compounds.
Used as a Specialty Chemicals Solvent:
In the field of specialty chemicals, 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE serves as a solvent for various applications. Its ability to dissolve a wide range of substances makes it suitable for use in processes that require the dissolution or extraction of specific compounds.
However, it is crucial to handle 2,4,6-TRIPROPAN-2-YL-1,3,5-TRIOXANE with caution, as it may pose health and environmental risks if not used properly. Proper safety measures and disposal methods should be followed to minimize any potential hazards associated with this compound.

Check Digit Verification of cas no

The CAS Registry Mumber 7580-12-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,5,8 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7580-12:
(6*7)+(5*5)+(4*8)+(3*0)+(2*1)+(1*2)=103
103 % 10 = 3
So 7580-12-3 is a valid CAS Registry Number.
InChI:InChI=1/C12H24O3/c1-7(2)10-13-11(8(3)4)15-12(14-10)9(5)6/h7-12H,1-6H3

7580-12-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,4,6-tri(propan-2-yl)-1,3,5-trioxane

1.2 Other means of identification

Product number -
Other names 2,4,6-Triisopropyl-1,3,5-trioxane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7580-12-3 SDS

7580-12-3Synthetic route

isobutyraldehyde
78-84-2

isobutyraldehyde

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

Conditions
ConditionsYield
With beryllium iodide In chloroform-d1 at 20℃; Schlenk technique; Glovebox; Inert atmosphere; Sealed tube;100%
With dodecatungstosilic acid for 1h; Ambient temperature;99.9%
With N,N,N',N'',N''-pentamethyl-N,N''-bis(3-sulfopropyl)diethylenetriaminium tris(trifluoromethanesulfonate) In neat (no solvent) at 20℃; for 1.5h; Catalytic behavior; Reagent/catalyst; Inert atmosphere; Green chemistry;97.6%
pivalaldehyde
630-19-3

pivalaldehyde

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

Conditions
ConditionsYield
With [P(2-pyridyl)3W(CO)(NO)2](2+)(BF4(1-))2 at 20℃; for 24h;86%
trimethylsilyl isothiocyanate
2290-65-5

trimethylsilyl isothiocyanate

isobutyraldehyde
78-84-2

isobutyraldehyde

A

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

B

bis(1-isothiocyanato-2-methylpropyl) ether

bis(1-isothiocyanato-2-methylpropyl) ether

Conditions
ConditionsYield
zinc(II) chloride at 90℃; for 0.5h; Product distribution; effect of temperature on product distribution;A 36%
B 22%
isobutyraldehyde
78-84-2

isobutyraldehyde

A

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

B

3-hydroxy-2,2,4-trimethyl-pentanal
918-79-6

3-hydroxy-2,2,4-trimethyl-pentanal

Conditions
ConditionsYield
bentonitic earth Irradiation;A 21%
B 12%
isobutyraldehyde
78-84-2

isobutyraldehyde

n-butyl(crotyl)tin dichloride

n-butyl(crotyl)tin dichloride

A

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

B

E-5-Hydroxy-6-methyl-hepten-2
75851-75-1, 85924-66-9, 66248-77-9

E-5-Hydroxy-6-methyl-hepten-2

(2S,6R)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

(2S,6R)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

(2S,6S)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

(2S,6S)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

Conditions
ConditionsYield
Yield given. Further byproducts given. Yields of byproduct given;
isobutyraldehyde
78-84-2

isobutyraldehyde

A

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

B

E-5-Hydroxy-6-methyl-hepten-2
75851-75-1, 85924-66-9, 66248-77-9

E-5-Hydroxy-6-methyl-hepten-2

(2S,6R)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

(2S,6R)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

(2S,6S)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

(2S,6S)-4-Chloro-2,6-diisopropyl-3-methyl-tetrahydro-pyran

Conditions
ConditionsYield
With n-butyl(crotyl)tin dichloride Yield given. Further byproducts given. Yields of byproduct given;
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

trimethylsilyl isothiocyanate
2290-65-5

trimethylsilyl isothiocyanate

bis(1-isothiocyanato-2-methylpropyl) ether

bis(1-isothiocyanato-2-methylpropyl) ether

Conditions
ConditionsYield
With tin(ll) chloride for 1.5h; Ambient temperature;70%
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

potassium permanganate

potassium permanganate

2-methyllactic acid
594-61-6

2-methyllactic acid

Conditions
ConditionsYield
at 130℃; im Rohr;
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

bromine
7726-95-6

bromine

A

2-bromo-2-methylpropanal
13206-46-7

2-bromo-2-methylpropanal

B

2-bromo-1,1-diethoxy-2-methyl-propane
98561-16-1

2-bromo-1,1-diethoxy-2-methyl-propane

C

monobromo-paraisobutyraldehyde

monobromo-paraisobutyraldehyde

Conditions
ConditionsYield
nachfolgend Einw. von Alkohol;
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

bromine
7726-95-6

bromine

A

bis-(1,2-dibromo-2-methyl-propyl) ether
6304-38-7

bis-(1,2-dibromo-2-methyl-propyl) ether

B

2-bromo-2-methylpropanal
13206-46-7

2-bromo-2-methylpropanal

C

2-bromo-1,1-diethoxy-2-methyl-propane
98561-16-1

2-bromo-1,1-diethoxy-2-methyl-propane

D

monobromo-paraisobutyraldehyde

monobromo-paraisobutyraldehyde

Conditions
ConditionsYield
at 30℃;
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

monomer isobutyraldehyde

monomer isobutyraldehyde

Conditions
ConditionsYield
at 150℃; im Rohr;
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

sulfuric acid
7664-93-9

sulfuric acid

monomer isobutyraldehyde

monomer isobutyraldehyde

carbon disulfide
75-15-0

carbon disulfide

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

bromine
7726-95-6

bromine

trimer(ic) α-bromo-isobutyraldehyde

trimer(ic) α-bromo-isobutyraldehyde

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

Reaxys ID: 11649497

Reaxys ID: 11649497

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

Reaxys ID: 11649498

Reaxys ID: 11649498

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

poly(ethylene-co-vinyl acetate)

poly(ethylene-co-vinyl acetate)

EVA; SB-5; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane

EVA; SB-5; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane

Conditions
ConditionsYield
With SB-5
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

Reaxys ID: 15740905

Reaxys ID: 15740905

EMMA; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane; WD203-1

EMMA; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane; WD203-1

Conditions
ConditionsYield
With WD203-1
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

linear low density polyethylene

linear low density polyethylene

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

Reaxys ID: 11364417

Reaxys ID: 11364417

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

linear low density polyethylene

linear low density polyethylene

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

Reaxys ID: 11364468

Reaxys ID: 11364468

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

low density polyethylene

low density polyethylene

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

low density polyethylene; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane; UB-1

low density polyethylene; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane; UB-1

Conditions
ConditionsYield
With UB-1
2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

low density polyethylene

low density polyethylene

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

2,3,5,6-tetrafluoro-4-methylbenzyl (1R)-trans-3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate

polyethylene; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane; V-1

polyethylene; 2,3,5,6-tetrafluoro-4-methylbenzyl-(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate; 2,4,6-triisopropyl-1,3,5-trioxane; V-1

Conditions
ConditionsYield
With V-1
methanol
67-56-1

methanol

2,4,6-triisopropyl-1,3,5-trioxane
7580-12-3

2,4,6-triisopropyl-1,3,5-trioxane

A

(R)-1-methoxy-2,2,4-trimethyl-pentan-3-ol
1221590-31-3

(R)-1-methoxy-2,2,4-trimethyl-pentan-3-ol

B

(S)-1-methoxy-2,2,4-trimethyl-pentan-3-ol
1221590-22-2

(S)-1-methoxy-2,2,4-trimethyl-pentan-3-ol

Conditions
ConditionsYield
With lithium perchlorate; (-)-menthol trimethylsilyl ether; trifluoroacetic acid at 20℃; for 2h; optical yield given as %ee; enantioselective reaction;

7580-12-3Relevant articles and documents

Beryllium-Induced Conversion of Aldehydes

Müller, Matthias,Buchner, Magnus R.

, p. 11147 - 11156 (2019/08/12)

Aldehydes play a key role in the human metabolism. Therefore, it is essential to know their reactivity with beryllium compounds in order to assess its effects in the body. The reactivity of simple aldehydes towards beryllium halides (F, Cl, Br, I) was studied through solution and solid-state techniques and revealed distinctively different reactivities of the beryllium halides, with BeF2 being the least and BeI2 the most reactive. Rearrangement and aldol condensation reactions were observed and monitored by in situ NMR spectroscopy. Crystal structures of various compounds obtained by Be2+-catalyzed cyclization, rearrangement, and aldol addition reactions or ligation of beryllium halides have been determined, including unprecedented one-dimensional BeCl2 chains and the first structurally characterized example of an 1-iodo-alkoxide. Long-term studies showed that only aldehydes without a β-H can form stable beryllium complexes, whereas other aldehydes are oligo- and polymerized or decomposed by beryllium halides.

A convenient approach for the synthesis of 1,3,5-trioxanes under solvent-free conditions at room temperature

Li, Xinzhong,Lin, Qi,Cao, Rong

, p. 1017 - 1022 (2014/06/09)

A series of environmentally benign bis-SO3H-functionalized Bronsted acidic ionic liquids were synthesized by using aliphatic polyamines and 1,3-propanesultone as the source chemicals. These ionic liquids acted as efficient inexpensive and recyclable catalysts for cyclotrimerization of aliphatic aldehydes at room temperature under solvent-free conditions. The reactions proceeded smoothly with good to excellent isolated yields (66.9-97.6 %=) and were generally complete in 1.5 h when the amount of ionic liquids was 0.1 mol%. The ionic liquids could be recovered readily and reused five times without any significant loss in their catalytic activity. Graphical abstract: [Figure not available: see fulltext.]

Novel acidic ionic liquids as efficient and recyclable catalysts for the cyclotrimerization of aldehydes

Song, Heyuan,Chen, Jing,Xia, Chungu,Li, Zhen

experimental part, p. 266 - 273 (2011/10/31)

A mild, efficient, and ecofriendly procedure for cyclotrimerization of aldehydes was realized by using a series of novel Brnsted acidic ionic liquids (BAILs) consisting of double-SO3H groups in cations as catalysts. Good conversion of aldehydes and selectivity of trialkyl-1,3,5-trioxanes were achieved by using 1mol% of BAILs. In addition, the catalyst system could be recycled and reused at least eight times without apparent loss of activity. Taylor & Francis Group, LLC.

Tetranuclear BINOL-titanium complex in selective direct aldol additions

Schetter, Bernd,Ziemer, Burkhard,Schnakenburg, Gregor,Mahrwald, Rainer

, p. 813 - 819 (2008/09/18)

(Chemical Equation Presented) The extremely robust and water-stable tetranuclear complex Ti4(μ-BINOLato)6(μ3- OH)4 (1) catalyzes the direct aldol addition with high degrees of regioselectivity at the sterically more encumbered α-side of unsymmetrical ketones. The formation of quaternary stereocenters is described. Oxygen-containing ene components can also be used as starting material in these reactions. When used with aliphatic aldehydes, acetals 18 or acetals of aldol adducts 20 were observed. As few as 0.2 mol % loadings with this catalyst 1 were enough to complete the reactions. Mechanistical aspects of the reactions are discussed.

InCl3 as an efficient catalyst for cyclotrimerization of aldehydes: Synthesis of 1,3,5-Trioxane under solvent-free conditions

Elamparuthi,Ramesh,Raghunathan

, p. 2801 - 2804 (2007/10/03)

1,3,5-Trioxanes derived from aldehydes were synthesized using indium trichloride as a catalyst. Cyclotrimerization of the aldehydes gave excellent yields under neat conditions within a short span of time. Copyright Taylor & Francis, Inc.

Tandem reactions of Friedel-Crafts/aldehyde cyclotrimerization catalyzed by an organotungsten Lewis acid

Wang, Hsing-Shiun,Yu, Shuchun Joyce

, p. 1051 - 1055 (2007/10/03)

The tris(2-pyridyl)phosphine complex [P(2-py)3 W(CO)(NO)2](BF4)2 acts as a Lewis acid catalyst precursor for the tandem reactions of Friedel-Crafts/aldehyde cyclotrimerization, which lead to the formation of a series of hyper-branched star polymers.

A convenient solvent-free preparation of 1,3,5-trioxanes

Augé, Jacques,Gil, Richard

, p. 7919 - 7920 (2007/10/03)

In the presence of a small amount of trimethylsilyl chloride, aldehydes gave at room temperature in solvent-free conditions the corresponding 1,3,5-trioxanes with good to excellent yields.

Acetonyltriphenylphosphonium bromide in organic synthesis: A useful catalyst in the cyclotrimerization of aldehydes

Hon, Yung-Son,Lee, Chia-Fu

, p. 6181 - 6188 (2007/10/03)

Acetonyltriphenylphosphonium bromide (ATPB) is a useful catalyst for the cyclotrimerization of the aliphatic aldehydes under solvent-free condition. The aldehydes tethered with a variety of functionality such as olefin, ether, ester, bromide, azide and diester could also be cyclotrimerized under the catalysis of ATPB.

Cyclotrimerization of Aliphatic Aldehydes Catalysed by Keggin-type Heteropoly Acids and Concomitant Phase Separation

Sato, Satoshi,Furuta, Hiromi,Sodesawa, Toshiaki,Nozaki, Fumio

, p. 385 - 390 (2007/10/02)

The acid-catalysed cyclotrimerization of aliphatic aldehydes has been examined through comparison of heteropoly acids with other acid catalysts.A Keggin-type heteropoly acid such as phosphomolybdic acid catalyses the cyclotrimerization of aldehydes, such as ethanal, propanal, butanal, 2-methylpropanal, 2,2-dimethylpropanal, hexanal, octanal, and decanal, to produce the respective 2,4,6-trialkyl-1,3,5-trioxanes in high yields.Catalysts turnover number of the heteropoly acid is more than 10000 for propanal cyclotrimerization.In addition to the high catalytic activities, the reaction mixture spontaneously separates into two phases, a produ ct phase and a catalyst phase, at high conversions of aldehyde.For propanal cycltrimerization, the reaction mixture separates into two liquid phases, and the recovered catalyst phase may be repeatedly applied to the reaction without additional care in isolation of the catalyst.The phase separation phenomenon has been concluded to be caused by the insolubility of the heteropoly acid coordinated with propanal in the product 2,4,6-triethyl-1,3,5-trioxane.

Synthesis of 1,3,5-trioxanes: A new, simple method using a bentonitic earth as catalyst

Camarena,Cano,Delgado,Zuniga,Alvarez,Garcia

, p. 6857 - 6858 (2007/10/02)

A simple method for synthesizing aliphatic as well as aromatic 1,3,5-trioxanes using as catalyst a bentonitic earth is reported. The yields ranged from good to excellent.

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