CAS No.149-73-5,Trimethoxymethane Suppliers,MSDS download

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Aecochem Corp.

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Ality Chemical Corporation

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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance Colorless,transparent liquid Complies Content% ≥99.90

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Kono Chem Co.,Ltd

Product Name Trimethyl orthoformate(TMOF) Synonyms METHYL ORTHOFORMATE;TMOF;ORTHOFORMIC ACID TRIMETHYL ESTER;TRIMETHYL-

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Trimethyl orthoformate Product Name: Trimethyl orthoformate Molecular Weight: 106.12 CAS NO: 149-73-5 EC NO: 205-745-7 Molecular Formula:

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Product Description Product name Trimethoxymethane CAS 149-73-5 Assay 99% Appearance Colorless liquid

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149-73-5 Manufacturer Trimethoxymethane factory supplier Trimethyl orthoformate is an effective solvent for thallium(III) nitrate-mediated oxidations. It undergoes acid catalyzed reaction with 6-(N-D-ribitylanilino) uracils to form 8-demethyl-8-hyd

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Synthetic route

: 67-56-1
methanol

: 75-25-2
Bromoform

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With sodium at 30℃; for 4h;	100%

: 75-25-2
Bromoform

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	100%
With methanol; sodium at 30℃; for 4h; Product distribution; electrolysis (Pt-anode, Cu-Zn (60:40) cathode, 220 mA/cm2 constant current); reaction with NaBr/CH3OH;	100%

: 67-56-1
methanol

: 15755-09-6
formimidomethylester hydrochloride

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
at 40 - 45℃; for 5h; Temperature; Large scale;	95%
With benzene

: 115-10-6
Dimethyl ether

: 107-31-3
Methyl formate

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With boron trifluoride In Hexadecane at 110℃; for 12h; Autoclave;	90%

: 67-56-1
methanol

: 74-90-8
hydrogen cyanide

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
Stage #1: methanol; hydrogen cyanide With hydrogenchloride In cyclohexane; water at -15 - 35℃; Large scale; Stage #2: In cyclohexane; water at 50 - 60℃; for 24h; pH=3 - 4; Solvent; Large scale;	89.7%
Stage #1: hydrogen cyanide With hydrogenchloride In methanol; mineral oil at -10 - 30℃; for 2.33333h; Large scale; Stage #2: methanol In mineral oil at 32 - 55℃; for 4h; Concentration; Temperature; Large scale;	87.5%
With hydrogenchloride

: 941-98-0
1'-naphthacetophenone

A: 75-25-2
Bromoform

B: 2459-24-7
methyl 1-naphthoate

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium bromide at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A n/a B 88% C n/a

...Expand

: 100-06-1
1-(4-methoxyphenyl)ethanone

A: 75-25-2
Bromoform

B: 121-98-2
methyl 4-methoxybenzoate

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium bromide at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A n/a B 85% C n/a

...Expand

: 122-00-9
para-methylacetophenone

A: 99-75-2
4-methyl-benzoic acid methyl ester

B: 75-25-2
Bromoform

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium bromide at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A 83% B n/a C n/a

...Expand

: 67-56-1
methanol

: 98-86-2
acetophenone

A: 93-58-3
benzoic acid methyl ester

B: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With sodium bromide at 30℃; Product distribution; Mechanism; electrolysis; other electrolytes, electrodes, other substrates;	A 74% B n/a
With sodium bromide at 30℃; electrolysis: Pt anode, brass cathode;	A 74% B n/a

...Expand

: 98-86-2
acetophenone

A: 93-58-3
benzoic acid methyl ester

B: 75-25-2
Bromoform

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium bromide at 30℃; for 4h; Product distribution; Mechanism; electrolysis (Pt-anode, Cu-Zn (60:40) cathode, 220 mA/cm2 constant current); other electrolyte, other electrolyte-to-substrate ratio, other material of electrodes;	A 74% B n/a C 15%
With methanol; sodium bromide at 30℃; for 4h; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A 74% B n/a C n/a

...Expand

: 646-06-0
1,3-DIOXOLANE

: 67-56-1
methanol

A: 19693-75-5
2-methoxy-1,3-dioxolane

B: 109620-95-3
4-methoxy-1,3-dioxolane

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With tris (2,4-dibromophenyl)amine; sodium methylate; lithium perchlorate at 40℃; electrochem. oxidation;	A 70.8% B 4.4% C 7%
With potassium hydroxide; tris (2,4-dibromophenyl)amine; lithium perchlorate at 40℃; electrochem. oxidation;	A 55.8% B 7.9% C 17.7%

...Expand

: 75-46-7
trifluoromethan

: 124-41-4
sodium methylate

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
In diethylene glycol dimethyl ether at 120℃; under 2585.81 Torr; for 24h; Solvent;	70%

: 67-56-1
methanol

: 67-66-3
chloroform

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With sodium hydroxide; 1,8-bis(dimethylamino)-1,6-dioxaoctane In dichloromethane	67%
With sodium hydroxide; 1,2-bis-(2-dimethylamino-ethoxy)-ethane In dichloromethane Product distribution; other phase-transfer catalysts, other alcohols;	67%
With sodium

: 563-80-4
3-methyl-butan-2-one

A: 75-25-2
Bromoform

B: 547-63-7
Methyl isobutyrate

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium bromide at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A n/a B 67% C n/a

...Expand

: 111-13-7
hexyl-methyl-ketone

A: 75-25-2
Bromoform

B: 19841-72-6
2,2-dimethoxy-3-octanol

C: 106-73-0
methyl heptanoate

D: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium bromide at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A n/a B 29% C 62% D n/a
With methanol; sodium bromide at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A n/a B 29% C 62% D n/a

...Expand

: 122-57-6
1-Phenylbut-1-en-3-one

A: 75-25-2
Bromoform

B: 103-26-4
methyl cinnamate

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol; sodium bromide at 30℃; electrolysis (Pt-anode, Cu-Zn (60:40)-cathode, 220 mA/cm2 constant current density);	A n/a B 61% C n/a

...Expand

: 67-56-1
methanol

: 21511-55-7, 34643-89-5
(methoxymethylidene)dimethylammonium methyl sulfate

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With Methyl formate 1) 16h, 2) 4h, 40 deg C;	50%

: 67-56-1
methanol

: 75-46-7
trifluoromethan

A: 141-53-7
sodium formate

B: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With sodium hydroxide at 120℃; under 2585.81 Torr; for 24h;	A 35% B 15%

...Expand

: 75-45-6
Chlorodifluoromethane

: 124-41-4
sodium methylate

A: 359-15-9
difluoromethyl methyl ether

B: 149-73-5
trimethyl orthoformate

...Expand

: 67-56-1
methanol

: 40480-72-6
dimethoxycarbene

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
In acetonitrile at 20℃; Rate constant;

: 67-56-1
methanol

: 114980-39-1
3,3-dimethoxydiazirine

: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
at 11.6℃; Thermodynamic data; ΔH;
In pentane at 20℃; Rate constant; Irradiation; primary kinetic isotope effect;

: 114980-39-1
3,3-dimethoxydiazirine

A: 1069-12-1
1,1,2,2-tetramethoxyethylene

B: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With methanol In pentane at 25℃; Product distribution; thermal decomposition also in presence of water (methanol absent);

: 107-31-3
Methyl formate

: 62038-48-6
3,3-dimethyl-2-butanone dimethyl ketal

A: 75-97-8
3,3-dimethyl-butan-2-one

B: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With hydrogenchloride In methanol at 25℃; Equilibrium constant;

...Expand

: 186581-53-3, 908094-01-9
diazomethane

: 107-31-3
Methyl formate

A: 57346-02-8
methoxyoxirane

B: 5878-19-3
Methoxyacetone

C: 2,4-dimethoxy-1,3-dioxacyclopentane

D: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
at -15 - 20℃; for 1.5h; Irradiation; Yield given. Further byproducts given. Yields of byproduct given. Title compound not separated from byproducts;

...Expand

: 67-66-3
chloroform

: 124-41-4
sodium methylate

A: 4637-24-5
N,N-dimethyl-formamide dimethyl acetal

B: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With N,N-dimethyl-formamide In methanol	A 48 % Chromat. B 38 % Chromat.

...Expand

: 67-66-3
chloroform

: 124-41-4
sodium methylate

: 68-12-2, 33513-42-7
N,N-dimethyl-formamide

A: 4637-24-5
N,N-dimethyl-formamide dimethyl acetal

B: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
	A 91 % Chromat. B 3 % Chromat.

...Expand

: 67-66-3
chloroform

: 124-41-4
sodium methylate

: 68-12-2, 33513-42-7
N,N-dimethyl-formamide

A: 201230-82-2
carbon monoxide

B: 4637-24-5
N,N-dimethyl-formamide dimethyl acetal

C: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
for 0.5h; Mechanism; methanol presence;

...Expand

: 4637-24-5
N,N-dimethyl-formamide dimethyl acetal

A: 75-58-1
tertamethylammonium iodide

B: 68-12-2, 33513-42-7
N,N-dimethyl-formamide

C: 74-88-4
methyl iodide

D: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With iodine Product distribution;	A 12.8 g B 5.2 g C 1.4 g D 6.7 g

...Expand

: 67-56-1
methanol

: 75-45-6
Chlorodifluoromethane

A: 359-15-9
difluoromethyl methyl ether

B: 149-73-5
trimethyl orthoformate

Conditions

Conditions	Yield
With sodium methylate at 25℃; for 2h; Product distribution; Further Variations:; Temperatures; Reagents;

...Expand

: 98-01-1
furfural

: 149-73-5
trimethyl orthoformate

: 1453-62-9
2-furaldehyde dimethyl acetal

Conditions

Conditions	Yield
With Yb(III)-coordinated adamantane-based porous polymer In methanol at 20℃; for 12h; Catalytic behavior; Reagent/catalyst;	100%
indium(III) triflate In dichloromethane at 20℃; for 0.0833333h;	99%
With cerium triflate In methanol at 20℃; for 0.0333333h;	99%

: 123-08-0
4-hydroxy-benzaldehyde

: 149-73-5
trimethyl orthoformate

: 59276-27-6
4-(dimethoxymethyl)phenol

Conditions

Conditions	Yield
With lithium tetrafluoroborate In methanol for 0.333333h; Heating;	100%
With Decaborane In methanol at 20℃; for 0.0666667h;	85%
With methanol; tetra-N-butylammonium tribromide at 20℃; for 2h;	25%

: 90-02-8
salicylaldehyde

: 149-73-5
trimethyl orthoformate

: 24396-24-5
2-(dimethoxymethyl)phenol

Conditions

Conditions	Yield
With lithium tetrafluoroborate In methanol for 0.666667h; Heating;	100%
With Decaborane In methanol at 20℃; for 0.0666667h;	99%
With triethylamine In methanol; tetrachloromethane at 0 - 20℃; for 3h;	86%

: 98-86-2
acetophenone

: 149-73-5
trimethyl orthoformate

: 4316-35-2
acetophenone dimethyl acetal

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In methanol Heating;	100%
With lithium tetrafluoroborate In methanol for 5h; Heating;	99%
With cerium triflate In methanol at 20℃; for 0.5h;	98%

: 141-97-9
ethyl acetoacetate

: 149-73-5
trimethyl orthoformate

: 3510-99-4
3-methoxy-but-2-enoic acid ethyl ester

Conditions

Conditions	Yield
With hydrogenchloride In methanol	100%
With hydrogenchloride In methanol	100%
Stage #1: ethyl acetoacetate; trimethyl orthoformate With sulfuric acid at 20℃; for 18h; Stage #2: With potassium carbonate for 0.5h;	38%
Stage #1: ethyl acetoacetate; trimethyl orthoformate With sulfuric acid at 20℃; for 18h; Stage #2: With potassium carbonate for 0.5h;	38%

: 100-52-7
benzaldehyde

: 149-73-5
trimethyl orthoformate

: 1125-88-8
benzaldehyde dimethyl acetal

Conditions

Conditions	Yield
With [Sc2(C4O4)3]n In tetrachloromethane at 60℃; for 1h;	100%
With lithium tetrafluoroborate In methanol for 0.5h; Heating;	100%
indium(III) triflate In dichloromethane at 20℃; for 0.0833333h;	99%

: 1122-91-4
4-bromo-benzaldehyde

: 149-73-5
trimethyl orthoformate

: 24856-58-4
1,1-dimethoxy-1-(4-bromophenyl)methane

Conditions

Conditions	Yield
Yb-Amberlyst XN-1010 In dichloromethane	100%
With Yb(III)-coordinated adamantane-based porous polymer In methanol at 20℃; for 12h; Catalytic behavior; Reagent/catalyst;	100%
With amberlyst-15 In acetonitrile for 2.5h; electroosmos;	99.7%

: 100-19-6
(4-nitrophenyl)ethanone

: 149-73-5
trimethyl orthoformate

: 53577-98-3
1,1-dimethoxy-1-(4-nitrophenyl)ethane

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In methanol for 72h;	100%
With toluene-4-sulfonic acid In methanol at 20℃;	95%
With toluene-4-sulfonic acid In methanol at 20℃; for 48h;	58%

: 149-73-5
trimethyl orthoformate

: 5392-40-5
(E/Z)-3,7-dimethyl-2,6-octadienal

: 7549-37-3
citral dimethyl acetal

Conditions

Conditions	Yield
With lithium tetrafluoroborate In methanol for 0.333333h; Heating;	100%
With cerium triflate In methanol at 20℃; for 0.0833333h;	99%
With cerium(III) chloride at 0℃; for 4h; Inert atmosphere;	78%
With erbium(III) chloride In methanol

: 124-13-0
Octanal

: 149-73-5
trimethyl orthoformate

: 10022-28-3
1,1-dimethoxyoctane

Conditions

Conditions	Yield
With lithium tetrafluoroborate In methanol for 0.5h; Heating;	100%
With cerium triflate In methanol at 20℃; for 0.0166667h;	95%
With Pd(PhCN)2(OTf)2 at 20℃; for 0.333333h; Inert atmosphere;	90%

: 930-35-8
1,3-dithiol-2-thione

: 149-73-5
trimethyl orthoformate

: 2-methylsulfanyl-2H-1,3-dithiole-2-ylium tetrafluoroborate

Conditions

Conditions	Yield
With boron trifluoride diethyl etherate In chloroform	100%

: 120-57-0
piperonal

: 149-73-5
trimethyl orthoformate

: 59259-90-4
5-(dimethoxymethyl)benzo[d][1,3]dioxole

Conditions

Conditions	Yield
With lithium tetrafluoroborate In methanol for 0.833333h; Heating;	100%
With Montmorillonite K 10 In methanol for 72h; Ambient temperature;	99%
With camphorsulfonic acid In methanol at 20℃; for 60h; Inert atmosphere;	99%

: 15930-53-7
6-bromo-3,4-methylenedioxybenzaldehyde

: 149-73-5
trimethyl orthoformate

: 74879-22-4
6-bromobenzo-1,3-dioxole-5-carboxaldehyde dimethyl acetal

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In methanol; benzene at 25℃; for 1h;	100%
In methanol; benzene at 80℃; for 8h; Inert atmosphere; Schlenk technique;	100%
With montmorillonite k-10 at 20℃; Inert atmosphere;	98%

: 141-97-9
ethyl acetoacetate

: 149-73-5
trimethyl orthoformate

: 22157-27-3
ethyl (2E)-3-methoxy-2-butenoate

Conditions

Conditions	Yield
With hydrogenchloride In methanol	100%
With hydrogenchloride In methanol; water	96%
acid	93%
With sulfuric acid; calcium chloride at 0 - 25℃; Inert atmosphere;	74%

: 86-81-7
3,4,5-trimethoxy-benzaldehyde

: 149-73-5
trimethyl orthoformate

: 59276-37-8
3,4,5-trimethoxybenzaldehyde dimethyl acetal

Conditions

Conditions	Yield
With montmorillonite K10 In methanol at 40℃; for 18h; Inert atmosphere;	100%
With camphorsulfonic acid In methanol at 20℃; for 60h; Inert atmosphere;	99%
Stage #1: 3,4,5-trimethoxy-benzaldehyde; trimethyl orthoformate With ammonium chloride In methanol for 3h; Inert atmosphere; Reflux; Stage #2: With triethylamine In methanol at 20℃; for 0.0833333h;	99%

: 530-93-8
1,2,3,4-tetrahydronaphthalen-2-one

: 149-73-5
trimethyl orthoformate

: 40815-23-4
3-methoxy-1,2-dihydronaphthalene

Conditions

Conditions	Yield
With toluene-4-sulfonic acid at 20 - 60℃; for 16h;	100%
	93%
With toluene-4-sulfonic acid for 8h; Ambient temperature;	87%
In benzene	1.15 g (75%)

: 98-86-2
acetophenone

: 149-73-5
trimethyl orthoformate

: 101-41-7
benzeneacetic acid methyl ester

Conditions

Conditions	Yield
With lithium perchlorate; methyl iodide Ambient temperature; anodic oxidation at constant current;	100%
With poly[4-(diacetoxyiodo)styrene]; sulfuric acid In acetonitrile at 60℃; for 0.5h;	80%
With lead(IV) acetate; perchloric acid at 50℃; for 2h;	46%
With LiCO4*H2O; methyl iodide Product distribution; Mechanism; Ambient temperature; anodic oxidation at constatnt current;

: 93-55-0
1-phenyl-propan-1-one

: 149-73-5
trimethyl orthoformate

: 31508-44-8
2-phenylpropionic acid methyl ester

Conditions

Conditions	Yield
With lithium perchlorate; methyl iodide Ambient temperature; anodic oxidation at constant current;	100%
With sulfuric acid; N-methyl-N-[3-(4-diacetoxyiodo)phenoxy-1-propyl]pyrrolidinium 4-methylbenzenesulfonate at 60℃; for 3h; Inert atmosphere;	99%
With trifluorormethanesulfonic acid; [bis(acetoxy)iodo]benzene In methanol; Cyclooctan at 50℃; for 0.0335h;	98%

: 135-02-4
ortho-anisaldehyde

: 149-73-5
trimethyl orthoformate

: 58378-33-9
o-anisaldehyde dimethyl acetal

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In methanol at 32℃;	100%
With camphor-10-sulfonic acid In methanol at 20℃; for 60h;	100%
In methanol at 20℃; for 1h; Inert atmosphere;	100%

: 6630-33-7
ortho-bromobenzaldehyde

: 149-73-5
trimethyl orthoformate

: 35849-09-3
o-bromobenzaldehyde dimethyl acetal

Conditions

Conditions	Yield
Stage #1: trimethyl orthoformate With montmorillonite K10 Clay at 20℃; for 0.333333h; Stage #2: ortho-bromobenzaldehyde at 20℃;	100%
With toluene-4-sulfonic acid In methanol at 20℃; for 2h; Inert atmosphere;	96%
With p-toluenesulfonic acid monohydrate In methanol at 100℃; for 12h; Inert atmosphere;	95%

: 613-54-7
2-Bromo-2'-acetonaphthone

: 149-73-5
trimethyl orthoformate

: 70891-59-7
2-bromo-1,1-dimethoxy-1-(2-naphthyl)ethane

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In methanol for 2h; Heating;	100%
With hydrogenchloride In methanol for 24h; Ambient temperature;	81%
With toluene-4-sulfonic acid In methanol for 3h; Yield given;

: 10342-83-3
4'-Bromopropiophenone

: 149-73-5
trimethyl orthoformate

: 83636-46-8
methyl 2-(4-bromophenyl)propanoate

Conditions

Conditions	Yield
With lithium perchlorate; methyl iodide Ambient temperature; anodic oxidation at constant current;	100%
With trifluorormethanesulfonic acid; [bis(acetoxy)iodo]benzene at 20℃; for 24h;	76%
With lead(IV) acetate; perchloric acid at 50℃; for 2h;	65%
With lead(IV) acetate; perchloric acid at 50℃; for 2h; Yield given;

: 7040-25-7
3,4-diformylfuran

: 149-73-5
trimethyl orthoformate

: 77161-53-6
Furan-3,4-dicarboxaldehyde bis

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In methanol at 35℃; for 20h;	100%

: 55436-24-3
4-Ethoxycarbonylmethyl-1,3-dithiole-2-thione

: 149-73-5
trimethyl orthoformate

: 4-(ethoxycarbonylmethyl)-2-methylthio-1,3-dithiolium tetrafluoroborate

Conditions

Conditions	Yield
With boron trifluoride diethyl etherate In chloroform	100%

: 107-86-8
3,3-dimethyl acrylaldehyde

: 149-73-5
trimethyl orthoformate

: 31525-65-2
3-methyl-but-2-enal dimethyl acetal

Conditions

Conditions	Yield
With indium(III) triflate In methanol at 20℃; for 0.5h;	100%
With ammonium nitrate In methanol for 8h; Ambient temperature;	63%

: 472-66-2
(2,6,6-trimethyl-1-cyclohexen-1-yl)acetaldehyde

: 149-73-5
trimethyl orthoformate

: 86558-53-4
Dimethoxy-2',2' ethyl-2 trimethyl-1,3,3 cyclohexene-1

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In methanol for 24h; Ambient temperature;	100%

: 29581-05-3
(2E,4S,5R)-4,6-diacetoxy-5-hydroxy-2(E)-hexenal

: 149-73-5
trimethyl orthoformate

: 136011-37-5
(2E,4S,5R)-4,6-diacetoxy-5-hydroxy-2-hexenal dimethyl acetal

Conditions

Conditions	Yield
With 3 A molecular sieve; toluene-4-sulfonic acid In methanol at 0℃; for 1h;	100%

: 5392-10-9
2-bromo-4,5-dimethoxybenzaldehyde

: 149-73-5
trimethyl orthoformate

: 70461-33-5
2-bromo-4,5-dimethoxybenzaldehyde dimethyl acetal

Conditions

Conditions	Yield
Stage #1: 2-bromo-4,5-dimethoxybenzaldehyde; trimethyl orthoformate; toluene-4-sulfonic acid In methanol for 3h; Heating / reflux; Stage #2: With sodium methylate In methanol	100%
With toluene-4-sulfonic acid In methanol for 3h; Reflux;	100%
With toluene-4-sulfonic acid In methanol for 16h; Reflux; Inert atmosphere;	100%