CAS No.74-95-3,Dibromo methane Suppliers,MSDS download

Hunan Russell Chemicals Technology Co.,Ltd

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Dibromomethane, 99% 74-95-3

Cas:74-95-3

Min.Order:0

Negotiable

Type:Trading Company

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QINGDAO ON-BILLION INDUSTRAIL CO.,LTD

ProductName:Dibromomethane Synonyms:DBM;DIBROMOMETHANE;METHYLENEDIBROMIDE;METHYLENEBROMIDE;CH2Br2;Dibrommethan;dibromo-methan;methane,dibromo … Appearance:colourless liquid Storage:Refrigerator Package:125k drums Application:Pharmaceutical I

Dibromomethane

Cas:74-95-3

Min.Order:125 Kilogram

Negotiable

Type:Trading Company

inquiry

Synthetic route

: 75-25-2
Bromoform

: 2857-97-8
trimethylsilyl bromide

A: 18142-75-1
trimethyl-tribromomethyl-silane

B: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With hexaethylphosphoric triamide In diethyl ether at 20℃; for 1h;	A 82% B n/a

...Expand

: 6317-18-6
bis(thiocyanato)methane

: 540-72-7
sodium thiocyanide

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
Stage #1: bis(thiocyanato)methane; sodium thiocyanide In methanol; water at 74 - 75℃; for 5h; Stage #2: With sodium hydrogencarbonate In methanol; water pH=6.3; Concentration; Solvent;	79.3%

: 34557-54-5
methane

A: 74-83-9
methyl bromide

B: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With bromine at 18 - 500℃; for 0.0166667h; Gas phase;	A 70.6% B 24.7%
With hydrogen bromide; oxygen; Mg/Ru/SiO2 In water at 580℃; Conversion of starting material;
With hydrogen bromide; oxygen; Ba/Bi/Ru/SiO2 In water at 580 - 600℃; Conversion of starting material;

: 75-09-2
dichloromethane

A: 74-97-5
chlorobromomethane

B: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With calcium bromide; tetrahexylammonium bromide at 110℃; for 24h;	A 30% B 62%
With ethyl bromide; aluminum oxide; tetrabutyl phosphonium bromide at 170℃;	A 49 % Spectr. B 25 % Spectr.
With ethyl bromide at 170℃; Product distribution; var. of catalyst, reagent;	A 50 % Spectr. B 24 % Spectr.
With ethyl bromide; aluminum oxide at 170℃;	A 66 % Spectr. B 14 % Spectr.

: 76508-46-8
2-ethoxy-1,3-dioxane

: 75-25-2
Bromoform

A: 2453-03-4
trimethylene carbonate

B: 74-96-4
ethyl bromide

C: 53452-10-1
3-Brompropylformiat

D: 75-07-0
acetaldehyde

E: 3-bromopropyl ethyl carbonate

F: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature;	A n/a B n/a C n/a D n/a E 60% F n/a

...Expand

: 75-25-2
Bromoform

: 83498-70-8
2-(hexyloxy)-1,3-dioxolane

A: 96-49-1
[1,3]-dioxolan-2-one

B: 111-25-1
1-bromo-hexane

C: 6065-67-4
formic acid-(2-bromo-ethyl ester)

D: 66-25-1
hexanal

E: 2-bromoethyl hexyl carbonate

F: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature;	A n/a B n/a C n/a D n/a E 60% F n/a

...Expand

: 75-77-4
chloro-trimethyl-silane

: 75-25-2
Bromoform

A: 18142-75-1
trimethyl-tribromomethyl-silane

B: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With hexaethylphosphoric triamide In diethyl ether at 20℃; for 1h;	A 56% B n/a

...Expand

: 75-25-2
Bromoform

: 2-(hexyloxy)-m-dioxane

A: 2453-03-4
trimethylene carbonate

B: 111-25-1
1-bromo-hexane

C: 53452-10-1
3-Brompropylformiat

D: 66-25-1
hexanal

E: 3-bromopropyl hexyl carbonate

F: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature;	A n/a B n/a C n/a D n/a E 56% F n/a

...Expand

: 34557-54-5
methane

A: 74-83-9
methyl bromide

B: 75-25-2
Bromoform

C: 558-13-4
carbon tetrabromide

D: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With bromine at 500℃; Product distribution; Further Variations:; Temperatures; Bromination;	A 17.4% B 0.48% C 2.5% D 5%

...Expand

: 74-83-9
methyl bromide

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With bromine at 250℃;

: 109-72-8, 29786-93-4
n-butyllithium

: 558-13-4
carbon tetrabromide

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
at -50℃;

: 2465-56-7
methylene

: 75-25-2
Bromoform

: 74-95-3
1,2-dibromomethane

: 2465-56-7
methylene

: 594-18-3
dibromodichloromethane

A: 75-35-4
1,1-Dichloroethylene

B: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
Tetrabrommethan,Bromoform und Jodoform reagieren analog;

...Expand

: 75-11-6
diiodomethane

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With water; bromine
With bromine

: 34557-54-5
methane

A: 75-25-2
Bromoform

B: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With bromine at 400℃;

: 75-09-2
dichloromethane

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With aluminum tri-bromide
With aluminum tri-bromide; hydrogen bromide
With bromine; aluminium

: 74-97-5
chlorobromomethane

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With bromine; aluminium

: 75-25-2
Bromoform

: 865-47-4
potassium tert-butylate

: 74-95-3
1,2-dibromomethane

: 75-25-2
Bromoform

: 925-90-6
ethylmagnesium bromide

A: 74-96-4
ethyl bromide

B: 34557-54-5
methane

C: 617-78-7
3-ethylpentane

D: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
Produkt: Aethan, Acetylen;

...Expand

: 75-25-2
Bromoform

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With alkali sulfite
With phenylhydrazine
With alkaline potassium arsenite man destilliert das Reaktionsprodukt mit Wasserdampf;

: 861525-37-3
2,2,5,5-tetrabromo-1,6-diphenyl-hexane-1,3,4,6-tetraone

: furan-2,3,5(4H)-trione pyridine (1:1)

A: 144-62-7
oxalic acid

B: 65-85-0
benzoic acid

C: 74-95-3
1,2-dibromomethane

...Expand

: 64-19-7
acetic acid

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With bromine; pyrographite at 300℃;

: 79-08-3
bromoacetic acid

: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
Electrolysis;

: 2465-56-7
methylene

: 594-18-3
dibromodichloromethane

: 108-90-7
chlorobenzene

A: 75-35-4
1,1-Dichloroethylene

B: 74-95-3
1,2-dibromomethane

...Expand

: 2465-56-7
methylene

: 558-13-4
carbon tetrabromide

: 108-90-7
chlorobenzene

A: 593-92-0
vinylidene dibromide

B: 74-95-3
1,2-dibromomethane

...Expand

: 75-25-2
Bromoform

: 100-63-0
phenylhydrazine

A: 64-18-6
formic acid

B: 74-95-3
1,2-dibromomethane

...Expand

: 4544-20-1
2-ethoxy-1,3-dioxolane

: 75-25-2
Bromoform

A: 96-49-1
[1,3]-dioxolan-2-one

B: 74-96-4
ethyl bromide

C: 6065-67-4
formic acid-(2-bromo-ethyl ester)

D: 36842-22-5
2-bromoethyl ethyl carbonate

E: 75-07-0
acetaldehyde

F: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With dibenzoyl peroxide at 90℃; for 0.5h; Product distribution;
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature, other time;

...Expand

: 109-65-9
1-bromo-butane

: 75-09-2
dichloromethane

A: 74-97-5
chlorobromomethane

B: 109-69-3
n-Butyl chloride

C: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
aluminum oxide; tetrabutyl phosphonium bromide In gas at 150℃; Product distribution; effect of catalytic bed;

...Expand

: 5721-88-0
2-phenyl-1,3-oxathiolane

A: 79-27-6
1,1,2,2-tetrabromoethane

B: 81110-22-7
S-(2-bromoethyl) benzothioate

C: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
With Bromoform; di-tert-butyl peroxide at 130℃; for 4.5h; Yields of byproduct given;	A n/a B 16 % Turnov. C n/a

...Expand

: 74-96-4
ethyl bromide

: 75-09-2
dichloromethane

A: 75-00-3
chloroethane

B: 74-97-5
chlorobromomethane

C: 74-95-3
1,2-dibromomethane

Conditions

Conditions	Yield
aluminum oxide; tetrabutyl phosphonium bromide In gas at 150℃; Product distribution; effect of catalytic bed;

...Expand

: 124-38-9
carbon dioxide

: 74-95-3
1,2-dibromomethane

: 631-64-1
dibromoacetic acid

Conditions

Conditions	Yield
Stage #1: 1,2-dibromomethane With 2,2,6,6-tetramethylpiperidinylmagnesium chloride lithium chloride complex In tetrahydrofuran; toluene at -78℃; for 0.5h; Inert atmosphere; Stage #2: carbon dioxide In tetrahydrofuran; toluene at -78℃; for 3h;	100%
(i) nBuLi, CH2Cl2, THF, (ii) /BRN= 1900390/; Multistep reaction;

: 100-76-5
Quinuclidine

: 74-95-3
1,2-dibromomethane

: 104303-96-0
1-Bromomethyl-1-azonia-bicyclo[2.2.2]octane; bromide

Conditions

Conditions	Yield
In acetonitrile at 30℃; under 750.06 Torr; for 3h;	100%

: 40557-24-2
2-tert-butylcyclopentanone

: 74-95-3
1,2-dibromomethane

: 66228-12-4
1-tert-butyl-2-methylene-cyclopentane

Conditions

Conditions	Yield
With titanium tetrachloride; zinc In dichloromethane	100%

: 130611-53-9, 130695-96-4
(S)-1,2,3,10,11,12-Hexamethoxy-7-methyl-7,8-dihydro-5H-dibenzo[a,c]cycloocten-6-one

: 74-95-3
1,2-dibromomethane

: 114394-15-9, 130695-98-6, 135095-47-5
(S)-1,2,3,10,11,12-Hexamethoxy-6-methyl-7-methylene-5,6,7,8-tetrahydro-dibenzo[a,c]cyclooctene

Conditions

Conditions	Yield
With titanium tetrachloride; zinc In dichloromethane for 0.25h; Ambient temperature;	100%

: 511256-85-2
(4aR,6S,7R,8aS)-4-(4-methoxybenzyloxy)butyric acid 2,2-di(tert-butyl)-6-methyl-6-(2-methylallyl)-4,4a,6,7,8,8a-hexahydro-1,3,5-trioxa-2-silanaphthalen-7-yl ester

: 74-95-3
1,2-dibromomethane

: 511256-86-3
(4aR,6S,7R,8aS)-2,2-di(tert-butyl)-7-{1-[3-(4-methoxybenzyloxy)propyl]vinyloxy}-6-methyl-6-(2-methylallyl)-4,4a,6,7,8,8a-hexahydro-1,3,5-trioxa-2-silanaphthalene

Conditions

Conditions	Yield
With N,N,N,N,-tetramethylethylenediamine; titanium tetrachloride; zinc; lead(II) chloride In tetrahydrofuran; dichloromethane for 2h; Heating;	100%

: 4238-71-5
1-benzylimidazole

: 74-95-3
1,2-dibromomethane

: 1,1’-dibenzyl-3,3’-methylenediimidazolium dibromide

Conditions

Conditions	Yield
In tetrahydrofuran at 100℃;	100%
Inert atmosphere; Schlenk technique;	99%
at 70 - 80℃;	81%

: 133545-69-4
5,5,9-trimethylspiro<5.5>undec-8-en-1-one

: 74-95-3
1,2-dibromomethane

: 15401-86-2
3,7,7-trimethyl-11-methylenespiro[5.5]undec-2-ene

Conditions

Conditions	Yield
With titanium tetrachloride; zinc In dichloromethane at 0 - 20℃; for 3h;	100%

: 943226-61-7
5,5-dimethoxypentanoic acid 2,2-di-tert-butyl-6-methyl-6-(2-methylallyl)-hexahydro-1,3,5-trioxa-2-sila-naphthalen-7-yl ester

: 74-95-3
1,2-dibromomethane

: 1053270-93-1
C27H50O6Si

Conditions

Conditions	Yield
With N,N,N,N,-tetramethylethylenediamine; titanium tetrachloride; zinc; lead(II) chloride In tetrahydrofuran; dichloromethane for 2h;	100%

: 943226-85-5
4-[5-(3-benzyloxy-1-methylpropyl)-4-methyl-tetrahydro-furan-2-yl]-3-triisopropylsilanyloxy-butyric acid 2-but-3-enyl-10a,11a-dimethyl-dodecahydro-1,5,10-trioxa-cyclohepta[b]naphthalen-3-yl ester

: 74-95-3
1,2-dibromomethane

: C48H80O7Si

Conditions

Conditions	Yield
With N,N,N,N,-tetramethylethylenediamine; titanium tetrachloride; zinc; lead(II) chloride In dichloromethane at 65℃;	100%

: 4316-42-1
1-Butylimidazole

: 74-95-3
1,2-dibromomethane

: 1,1’-di-n-butyl-3,3’-methylenediimidazolium dibromide

Conditions

Conditions	Yield
In tetrahydrofuran at 100℃;	100%
Inert atmosphere; Schlenk technique;	89%
In tetrahydrofuran at 20 - 80℃; for 192h;	87.6%
In acetonitrile for 96h; Reflux;

: C18H25BO3

: 74-95-3
1,2-dibromomethane

: C18H24BBrO3

Conditions

Conditions	Yield
Stage #1: C18H25BO3; 1,2-dibromomethane With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 1h; Inert atmosphere; Stage #2: With zinc(II) chloride In tetrahydrofuran; diethyl ether at -78 - 20℃; Inert atmosphere; enantioselective reaction;	100%

: vilmorrianine E

: 74-95-3
1,2-dibromomethane

: N-bromomethyl vilmorrianine E hydrobromide

Conditions

Conditions	Yield
In ethyl acetate for 120h; Reflux;	100%

: 102831-44-7
diethyl tert-butoxycarbonylaminomalonate

: 74-95-3
1,2-dibromomethane

: C13H22BrNO6

Conditions

Conditions	Yield
With caesium carbonate In N,N-dimethyl-formamide at 20℃; Inert atmosphere;	100%

: 34231-78-2
3-formylphenyl acetate

: 41908-11-6
3-acetylbenzaldehyde

: 74-95-3
1,2-dibromomethane

: 2454-30-0
3-vinylphenyl acetate

Conditions

Conditions	Yield
With acetic anhydride	99.7%

...Expand

: 75-77-4
chloro-trimethyl-silane

: 74-95-3
1,2-dibromomethane

: 29955-10-0
dibromobis(trimethylsilyl)methane

Conditions

Conditions	Yield
With lithium diisopropyl amide In tetrahydrofuran; hexane; pentane 1.) -110 deg C, 20 min, 2.) -110 deg C to r.t., 12 h;	99%
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃;	88%
With lithium diisopropyl amide In tetrahydrofuran at -100℃;	60%

: 113352-74-2
(+)-(2,3-endo)-tert-butyldimethylsilyl 3-(1-oxopropyl)bicyclo<2.2.1>hept-5-ene-2-carboxylate

: 74-95-3
1,2-dibromomethane

: 113352-75-3
(+)-(2,3-endo)-tert-butyldimethylsilyl 3-(1-methenylpropyl)bicyclo<2.2.1>hept-5-ene-2-carboxylate

Conditions

Conditions	Yield
With titanium tetrachloride; zinc In tetrahydrofuran; dichloromethane at 20℃; for 0.5h;	99%

: 147043-60-5
5'-(O-tert-butyl(dimethyl)silyl)-3'-ketothymidine

: 74-95-3
1,2-dibromomethane

: 170638-74-1
1-[(2R,5S)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-4-methylene-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

Conditions

Conditions	Yield
With titanium tetrachloride; zinc In tetrahydrofuran; dichloromethane for 2h; Ambient temperature;	99%
With titanium tetrachloride; zinc In tetrahydrofuran; dichloromethane

: 616-47-7
1-methyl-1H-imidazole

: 74-95-3
1,2-dibromomethane

: 1,1'-dimethyl-3,3'-methylenediimidazolium bromide

Conditions

Conditions	Yield
In tetrahydrofuran at 130℃; for 24h;	99%
Inert atmosphere; Schlenk technique;	99%
for 18h; Reflux;	96%

: 74-95-3
1,2-dibromomethane

: 391680-92-5
methyl 5,6-dihydroxy-2-thien-2-ylpyrimidine-4-carboxylate

: 766557-56-6
5-thiophen-2-yl-[1,3]dioxolo[4,5-d]pyrimidine-7-carboxylic acid methyl ester

Conditions

Conditions	Yield
With potassium fluoride In N,N-dimethyl-formamide at 120℃;	99%

: 946121-16-0
3-(5-chloro-2-methoxy-benzenesulfonylamino)-4-hydroxy-benzoic acid methyl ester

: 74-95-3
1,2-dibromomethane

: 946121-17-1
3-(5-chloro-2-methoxy-benzenesulfonyl)-2,3-dihydro-benzooxazole-5-carboxylic acid methyl ester

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 48h;	99%

: indium(I) bromide

: 67-68-5
dimethyl sulfoxide

: 74-95-3
1,2-dibromomethane

: 99666-59-8
Br2InCH2Br*3(CH3)2SO

Conditions

Conditions	Yield
In dimethyl sulfoxide DMSO added to suspn. of InBr in CH2Br2 at ca. -80°C, allowed to reach room temp. with stirring, further stirred for 1 h; evapd. in vac., oil solidified on stirring with petroleum ether, solid washed with Et2O, dried in vac.; elem. anal.;	99%

...Expand

: 185411-43-2
(CoH(NC5H4CH2CH2NHCH(CH3)C(CH3)NO)2)(2+)

: 74-95-3
1,2-dibromomethane

: 377734-77-5
((CH2)Co(NC5H4CH2CH2NHCH(CH3)C(CH3)NO)2)(1+)*ClO4(1-)=((CH2)Co(NC5H4CH2CH2NHCH(CH3)C(CH3)NO)2)ClO4

Conditions

Conditions	Yield
With NaBH4; PdCl2; NaOH In methanol; water soln. NaOH was added to suspn. Co(III) complex in MeOH under Ar, NaBH4 in water was added, PdCl2 in aq. HCl was added, after 15 min CH2Br2 was added;	99%

: 532932-53-9
[Rh(triphenylphosphine)(C5Me5)((2,4,6-tri-tert-butylphenyl)phosphinidene)]

: 74-95-3
1,2-dibromomethane

: (η5-C5Me5)Rh{PPh3}Br2

Conditions

Conditions	Yield
In pentane byproducts: ((CH3)3C)3C6H2PCH2; (N2 or Ar); treatment of soln. of Rh(PPh3)(C5Me5)(PC6H2(t-Bu)3) in n-pentane with small excess of CH2Br2 at room temp. for 12 h; pptn., decanting, washing with n-pentane;	99%

: 13154-24-0
triisopropylsilyl chloride

: 74-95-3
1,2-dibromomethane

: (dibromomethyl)triisopropylsilane

Conditions

Conditions	Yield
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃; Inert atmosphere;	99%
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃;	99%

: (S)-6,6'-dimethyl-5,5'-dibromo-2,2'-dihydroxybiphenyl

: 74-95-3
1,2-dibromomethane

: C15H12Br2O2

Conditions

Conditions	Yield
With potassium carbonate In acetonitrile for 4h; Reflux;	99%

: ethyl N-(2-iodophenyl)-N-(2-phenylacryloyl)glycinate

: 74-95-3
1,2-dibromomethane

: ethyl 2-(2'-oxo-2,3-dihydrospiro[indene-1,3'-indolin]-1'-yl)acetate

Conditions

Conditions	Yield
With palladium diacetate; tetra-(n-butyl)ammonium iodide; potassium carbonate; triethylamine; tris-(o-tolyl)phosphine In N,N-dimethyl acetamide at 90℃; for 12h; Schlenk technique; Inert atmosphere; Sealed tube;	99%

: N-benzyl-N-(2-iodophenyl)-2-phenylacrylamide

: 74-95-3
1,2-dibromomethane

: 1'-benzyl-2,3-dihydrospiro[indene-1,3'-indolin]-2'-one

Conditions

Conditions	Yield
With palladium diacetate; tetra-(n-butyl)ammonium iodide; potassium carbonate; triethylamine; tris-(o-tolyl)phosphine In N,N-dimethyl acetamide at 90℃; for 12h; Schlenk technique; Inert atmosphere; Sealed tube;	99%