CAS No.563-78-0,2,3-Dimethyl-1-butene Suppliers,MSDS download

Simagchem Corporation

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Henan Sinotech Import&Export Corporation

Items Specifications Appearance Colorless to light yellow transparent liquid Color ≤50Hazen Purity

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Zibo Hangyu Biotechnology Development Co., Ltd

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HENAN SUNLAKE ENTERPRISE CORPORATION

2,3-Dimethyl-1-butene Basic information Product Name: 2,3-Dimethyl-1-butene

563-78-0 C6H12 2,3-Dimethyl-1-butene

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2,3-dimethylbut-1-ene

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Synthetic route

: 187737-37-7
propene

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With diethyl aluminiumcholoride; trioctyl phosphite In toluene at -10℃; under 1500.15 Torr; for 5h; Reagent/catalyst; Temperature; Inert atmosphere; Autoclave;	90%
With In toluene at 70℃; for 50h;	9%
With In benzene-d6 at 49℃; Rate constant;
With (C6H5O)2P-N(C4H9)2; diethylaluminium chloride; Ni(β-C10H7CO2)2 In toluene at 18 - 23℃; under 750.06 Torr; Product distribution; influence of organophosphorus ligand L on the activity and selectivity of catalytic systems;
With C30H38FeN3 In benzene-d6 at 23℃; for 48h; Diels-Alder Cycloaddition;

: 187737-37-7
propene

A: 763-29-1
2-Methyl-1-pentene

B: 691-38-3
(Z)-4-methyl-2-pentene

C: 691-37-2
4-Methyl-1-pentene

D: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With ethylaluminum dichloride; π-C3H5NiP(C6H11-cyclo)3Br In chlorobenzene at -75 - -45℃; for 0.5h; Product distribution;	A 4% B 1% C 18% D 76%
With VCl3((C5H3N)(C(CH3)N(C6H2)Br2Me)2) In toluene at 20℃; for 1h;
VCl3((C5H3N)(C(CH3)N(C6H2)Br2Me)2) In toluene at 20℃; for 1h;	A 6 %Chromat. B 45 %Chromat. C 24 %Chromat. D 25 %Chromat.

...Expand

: 187737-37-7
propene

A: 563-79-1
2,3-Dimethyl-2-butene

B: 625-27-4
2-methyl-2-pentene

C: 763-29-1
2-Methyl-1-pentene

D: 4461-48-7
4-methyl-2-pentene

E: 691-37-2
4-Methyl-1-pentene

F: 563-78-0
2,3-Dimethyl-1-butene

G 1-hexene 2.2.percent.: 1-hexene 2.2.percent.

Conditions

Conditions	Yield
diethylaluminium chloride In benzene at 50℃; under 6840 Torr; for 2h; Product distribution; 0 - 60 deg C, 1 - 32 h, influence of the catalysts on the yields;	A 5.4% B 3.2% C 18.4% D 58.2% E 10.2% F 2.1% G n/a

...Expand

: 513-81-5
2,3-dimethyl-buta-1,3-diene

A: 563-79-1
2,3-Dimethyl-2-butene

B: 79-29-8
2,3-dimethylbutane

C: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With hydrogen; palladium dichloride In N,N-dimethyl-formamide under 18751.5 Torr; for 0.25h; Product distribution; Ambient temperature; various time;	A 39.3% B 0.05% C 52.2%
With hydrogen; 1,5-hexadienerhodium(I)-chloride dimer In various solvent(s) for 2h; Ambient temperature; pH=7.6;	A 27% B 25% C 22%
With bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate; hydrogen; disodium salt of the bis(m-sulfonatophenyl)-n-butylphosphane at 60℃; under 22502.3 Torr; for 6h; Ionic liquid; chemoselective reaction;

...Expand

: 115982-92-8
tantalum(η5-Cp)(2,3-dimethylbutadiene){C5H6O(isopropyl)2}

A: 563-79-1
2,3-Dimethyl-2-butene

B: 38443-89-9
2-methyl-3-isopropyl-6-hepten-3-ol

C: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
Hydrolysis of starting compd.; Gas chromy.;	A 35% B 48% C 17%

...Expand

: (hydridotris(3,5-dimethylpyrazolyl)borate)Ir(C6H5)2(N2)

: 513-81-5
2,3-dimethyl-buta-1,3-diene

A: 38023-36-8
1,4-diphenyl-2,3-dimethylbutadiene-1,3

B: 21564-72-7
1,4-Dihydro-2,3-dimethylnaphthalene

C: C21H32BIrN6

D: (Z)-2,3-dimethyl-1-phenylbutadiene

E: C21H32BIrN6

F: C27H36BIrN6

G: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
In benzene at 120℃; for 16h;	A n/a B n/a C 30% D n/a E 20% F 45% G n/a

...Expand

: 64-17-5
ethanol

: 125881-10-9
2,3,4,5,6-Pentamethyl-benzenesulfonic acid 1,2,2-trimethyl-3-trimethylsilanyl-propyl ester

A: 558-37-2
tert-butylethylene

B: 31397-75-8
(2,3-Dimethyl-but-3-enyl)-trimethyl-silane

C: (3-Ethoxy-2,2-dimethyl-butyl)-trimethyl-silane

D: (3-Ethoxy-2,3-dimethyl-butyl)-trimethyl-silane

E: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With water at 25℃; Rate constant; Product distribution; Mechanism; other alcohol, var. EtOH conc.; deuterium kinetic isotopic effect;	A 9% B 32% C 6% D 39% E 14%

...Expand

: 187737-37-7
propene

A: 625-27-4
2-methyl-2-pentene

B: 13269-52-8
trans-3-Hexene

C: 4050-45-7
trans-2-hexene

D: 691-38-3
(Z)-4-methyl-2-pentene

E: 674-76-0
(E)-4-methylpent-2-ene

F: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With tetrabutylammonium perchlorate; bis(triphenylphosphine)nickel(II) chloride In various solvent(s) at 50℃; under 3750.3 Torr; for 24h; Product distribution; electrochemical reduction process, effect of catalyst, anode, supporting electrolyte, ligand, temperature and pressure;	A 23% B 13.5% C 4.2% D 6.1% E 32.7% F 14.8%

...Expand

: 563-79-1
2,3-Dimethyl-2-butene

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With NaX zeolite at 300℃;	27%
silver (I) ion In acetonitrile Irradiation; Yield given;
With hydrogenchloride; water In decalin at 165℃; for 20h; Product distribution; in sealed tube; also with DCl/D2O, deuteration investigated;	20.1 % Chromat.

: 35913-82-7
cyclopentadienylirondicarbonyl hydride

: 513-81-5
2,3-dimethyl-buta-1,3-diene

A: 563-79-1
2,3-Dimethyl-2-butene

B: 38117-54-3
cyclopentadienyl iron(II) dicarbonyl dimer

C: η5-C5H5Fe(CO)2CH2CMe=CMe2

D: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
In pentane under N2, stirring at room temp, the react. was complete within about 1 h; evapn. (vac.), chromy. on alumina (eluent pentane for the hydrometalated products, and more polar solvents for the dimer), elem. anal., (the org. products identified by GC and NMR);	A n/a B 20% C 8% D n/a

...Expand

: 68258-20-8
2-(2,2-dimethylcyclopropyl)acetic acid

A: 563-79-1
2,3-Dimethyl-2-butene

B: 558-37-2
tert-butylethylene

C: 691-37-2
4-Methyl-1-pentene

D: 563-78-0
2,3-Dimethyl-1-butene

E CO2: CO2

Conditions

Conditions	Yield
at 496.9℃; for 0.25h; Product distribution; Thermodynamic data; Rate constant;	A 11% B n/a C n/a D n/a E n/a

...Expand

: 85-44-9
phthalic anhydride

: 464-07-3, 20281-91-8
3,3-dimethyl-2-butanol

: 98-11-3
benzenesulfonic acid

A: 563-79-1
2,3-Dimethyl-2-butene

B: 558-37-2
tert-butylethylene

C: 563-78-0
2,3-Dimethyl-1-butene

...Expand

: 76-09-5
2,3-dimethyl-2,3-butane diol

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With zinc(II) chloride

: 513-35-9
2-methyl-but-2-ene

: 74-87-3
methylene chloride

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With magnesium oxide at 265℃;
With lead(II) oxide at 280 - 290℃;

: 563-79-1
2,3-Dimethyl-2-butene

A: 558-37-2
tert-butylethylene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With phosphorus pentoxide; silica gel at 300℃; bei der Destillation;

: 119-64-2
tetralin

: 594-57-0
2-chloro-2,3-dimethylbutane

: 557-20-0
diethylzinc

A: 563-79-1
2,3-Dimethyl-2-butene

B: 560-21-4
2,3,3-Trimethyl-pentane

C: 79-29-8
2,3-dimethylbutane

D: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
at 3℃;

...Expand

: 558-37-2
tert-butylethylene

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With aluminum(III) sulfate at 275℃;
With sodium permutite at 310℃;
With phosphorus pentoxide; silica gel at 300℃;

: 464-07-3, 20281-91-8
3,3-dimethyl-2-butanol

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With oxalic acid at 110 - 120℃;
With ethylmagnesium bromide at 340℃;
ueber das Gleichgewicht zwischen den verschiedenen Dimethylbutenen;

: 464-07-3, 20281-91-8
3,3-dimethyl-2-butanol

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With aluminum oxide at 300℃;
With aluminum(III) sulfate at 275℃;
With phosphoric acid at 300℃; under 128714 Torr;

: 594-60-5
2,3-dimethylbutan-2-ol

: 120-18-3
naphthalene-2-sulfonate

: 563-78-0
2,3-Dimethyl-1-butene

: 594-60-5
2,3-dimethylbutan-2-ol

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With sulfuric acid; acetic anhydride
With aluminum oxide at 300℃;
Multi-step reaction with 2 steps 1: 14 percent Chromat. / γ-Al2O3 / 325 °C / variation of temperature and reagent 2: 27 percent / NaX zeolite / 300 °C View Scheme
Multi-step reaction with 2 steps 1: β-naphthalene-sulfonic acid View Scheme

: 594-60-5
2,3-dimethylbutan-2-ol

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With iodine
With oxalic acid at 100℃;
With naphthalene-2-sulfonate

: 594-52-5
2-bromo-2,3-dimethylbutane

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With triethanolamine; 2-Butoxyethanol
With potassium carbonate
With potassium acetate; acetic acid
With potassium hydroxide

: 859183-56-5
2-ethoxy-1-bromo-2,3-dimethyl-butane

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
With propan-1-ol; zinc

: 5857-68-1
di-t-butyl-1,1 ethylene

: 162109-20-8
1-bromo-4-naphthalenesulfonic acid

A: 563-79-1
2,3-Dimethyl-2-butene

B: 558-37-2
tert-butylethylene

C: 563-78-0
2,3-Dimethyl-1-butene

D: 115-11-7
isobutene

...Expand

: 4806-33-1
2,3-dimethyl-2-butyl acetate

: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
at 400℃;

: 4806-33-1
2,3-dimethyl-2-butyl acetate

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
at 400℃;

: 464-07-3, 20281-91-8
3,3-dimethyl-2-butanol

: 144-62-7
oxalic acid

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

...Expand

: 594-60-5
2,3-dimethylbutan-2-ol

: 144-62-7
oxalic acid

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
ein Gleichgewichtsgemisch ist erhalten worden bei der Dehydratisierung;

...Expand

: 594-60-5
2,3-dimethylbutan-2-ol

: 104-15-4
toluene-4-sulfonic acid

A: 563-79-1
2,3-Dimethyl-2-butene

B: 563-78-0
2,3-Dimethyl-1-butene

Conditions

Conditions	Yield
ein Gleichgewichtsgemisch ist erhalten worden bei der Dehydratisierung;

...Expand

: 201230-82-2
carbon monoxide

: 563-78-0
2,3-Dimethyl-1-butene

: 3302-06-5
3,4-Dimethylpentanoic acid

Conditions

Conditions	Yield
With sulfuric acid; α,α′-bis(2-pyridyl(tert-butyl)phosphino)-o-xylene; water; palladium(II) acetylacetonate; acetic acid at 20 - 100℃; under 30003 Torr; for 20h; Inert atmosphere; Autoclave;	99%

: 1631-73-8
trimethylstannane

: 563-78-0
2,3-Dimethyl-1-butene

: 15095-89-3
1-Trimethylstannyl-2,3-dimethyl-butan

Conditions

Conditions	Yield
Irradiation (UV/VIS); UV-irradiation at 10°C for 80 h in a sealed tube;;	98%
Irradiation (UV/VIS); UV-irradiation at 10°C for 80 h in a sealed tube;;	98%

: 563-78-0
2,3-Dimethyl-1-butene

: 563-79-1
2,3-Dimethyl-2-butene

Conditions

Conditions	Yield
aluminum oxide at -0.1℃; for 0.166667h;	95%
x In nitromethane at 25℃; for 0.25h;	88%
NiX(21) zeolite at -0.1℃; Rate constant; or ZnX(21) zeolite;

: 563-78-0
2,3-Dimethyl-1-butene

: 25015-63-8
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

: 1172581-29-1
2-(2,3-dimethylbutyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Conditions

Conditions	Yield
With C20H22AlN2PSe In neat (no solvent) at 30℃; for 8h; Schlenk technique; Glovebox; Inert atmosphere; chemoselective reaction;	90%
With chlorocarbonylbis(triphenylphosphine)rhodium(I) In dichloromethane at 20 - 40℃; for 3.5h; Inert atmosphere;	88%
With C17H19Cl2CoN3O; sodium t-butanolate In tetrahydrofuran at 25℃; for 1h; Inert atmosphere; regioselective reaction;	78 mg

: 12176-06-6
hydrido(tricarbonyl)(cyclopentadienyl)molybdenum

: 1493-13-6
trifluorormethanesulfonic acid

: 563-78-0
2,3-Dimethyl-1-butene

A: (η5-C5H5)(OC)3MoOSO2CF3

B: 79-29-8
2,3-dimethylbutane

Conditions

Conditions	Yield
In dichloromethane-d2 react. at -75°C for 5 min; quenching by pyridine, detecting by n.m.r. spectroscopy;	A n/a B 86%

...Expand

: 1074-12-0
phenylglyoxal hydrate

: 563-78-0
2,3-Dimethyl-1-butene

: 2-hydroxy-5-methyl-4-methylene-1-phenylhexan-1-one

Conditions

Conditions	Yield
With C39H60N4O4; nickel(II) tetrafluoroborate hexahydrate In 1,2-dichloro-ethane at 60℃; for 32h; optical yield given as %ee;	86%

: 563-78-0
2,3-Dimethyl-1-butene

: 62127-35-9
2,3-dimethyl-1-buthyl fluoride

Conditions

Conditions	Yield
With HF-melamine; hydrogen fluoride In tetrahydrofuran at 0℃; for 1h;	85%

: 13081-18-0
ethyl-3,3,3-trifluoropyruvate

: 563-78-0
2,3-Dimethyl-1-butene

: 2-hydroxy-5-methyl-4-methylene-2-trifluoromethyl-hexanoic acid ethyl ester

Conditions

Conditions	Yield
With C39H60N4O4; magnesium triflate In dichloromethane at 30℃; for 24h; optical yield given as %ee; enantioselective reaction;	83%

: 75-25-2
Bromoform

: 563-78-0
2,3-Dimethyl-1-butene

: 22715-57-7
2,2,3,3-tetramethyl-1,1-dibromocyclopropane

Conditions

Conditions	Yield
With potassium tert-butylate In pentane at 0 - 20℃; for 2.33333h; Inert atmosphere;	82%

: 563-78-0
2,3-Dimethyl-1-butene

: 25015-63-8
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

: (S)-2-(2,3-dimethylbutyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Conditions

Conditions	Yield
With phosgene; potassium tert-butylate In toluene at 20℃; for 12h; Inert atmosphere;	82%

: 563-78-0
2,3-Dimethyl-1-butene

: 72221-03-5
2,3-dimethyl-1,2-epoxybutane

Conditions

Conditions	Yield
With sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid In dichloromethane for 12h; Ambient temperature;	81%
With sodium periodate; >*1.5H2O In dichloromethane; water at 2℃; for 15h;	59%
With 3-chloro-benzenecarboperoxoic acid In dichloromethane at 0 - 22℃;	49%

: 55962-05-5
[N-(p-tolylsulfonyl)imino]phenyliodinane

: 563-78-0
2,3-Dimethyl-1-butene

: 956102-58-2
2-isopropyl-2-methyl-1-[(4-methyl-phenyl)sulfonyl]aziridine

Conditions

Conditions	Yield
With Cu(C6H5NC6H2(C(CH3)3)2O)2 In acetonitrile at 20℃; for 5h; Schlenk technique; Inert atmosphere;	81%

: 99-87-6
4-methylisopropylbenzene

: 563-78-0
2,3-Dimethyl-1-butene

: 2084-69-7
1,1,2,4,4,7-hexamethyl-1,2,3,4-tetrahydro-naphthalene

Conditions

Conditions	Yield
Stage #1: 4-methylisopropylbenzene; 2,3-Dimethyl-1-butene With isobutyryl chloride for 0.5h; Stage #2: With antimony(III) chloride In dichloromethane at 25℃; for 2h; Reagent/catalyst; Solvent; Temperature;	80.24%
With aluminium trichloride; tertiary butyl chloride; Aliquat 336 In cyclohexane at 20℃;	47.5%
With aluminum (III) chloride; tertiary butyl chloride In dichloromethane; cyclohexane at 10℃; for 0.416667h; Temperature; Solvent; Reagent/catalyst;	44.22%
With ion-exchange resin + form>
With aluminum (III) chloride; tertiary butyl chloride In cyclohexane

: 102690-46-0
phenyl buta-2,3-dienoate

: 563-78-0
2,3-Dimethyl-1-butene

: phenyl 2-(3-Isopropyl-3-methylcyclobutylidene)acetate

Conditions

Conditions	Yield
With ethylaluminum dichloride In hexane; dichloromethane at 20℃; Inert atmosphere;	80%

: 563-78-0
2,3-Dimethyl-1-butene

: 603-35-0
triphenylphosphine

: C24H29OP

Conditions

Conditions	Yield
With [4,4’-bis(1,1-dimethylethyl)-2,2’-bipyridine-N1,N1‘]bis [3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-N]phenyl-C]iridium(III) hexafluorophosphate; water In acetonitrile at 20℃; for 48h; Irradiation; Inert atmosphere; Sealed tube;	75%

: 16312-79-1
4-methylurazole

: 563-78-0
2,3-Dimethyl-1-butene

A: 4-Methyl-1-(3-methyl-2-methylene-butyl)-[1,2,4]triazolidine-3,5-dione

B: C12H18N6O4

Conditions

Conditions	Yield
In ethyl acetate Ambient temperature;	A 73% B 15%
In ethyl acetate for 12h; Ambient temperature;	A 73% B 15%

...Expand

: 50-00-0
formaldehyd

: 563-78-0
2,3-Dimethyl-1-butene

A: 74126-47-9
3,4-dimethylpent-3-en-1-ol

B: 76019-22-2
3-methylene-4-methylpentan-1-ol

Conditions

Conditions	Yield
With dimethylaluminum chloride In dichloromethane at 25℃; for 12h;	A 24% B 72%

...Expand

: 563-78-0
2,3-Dimethyl-1-butene

: 106-89-8
epichlorohydrin

: 1,2-epoxy-5-isopropyl-5-hexene

Conditions

Conditions	Yield
Stage #1: 2,3-Dimethyl-1-butene With n-butyllithium; potassium tert-butylate In tetrahydrofuran at -78 - -45℃; for 1.08333h; Stage #2: epichlorohydrin In tetrahydrofuran at -78℃; for 0.5h;	72%

: 67-56-1
methanol

: 563-78-0
2,3-Dimethyl-1-butene

: 26356-10-5
2,3-dimethyl-2-butyl methyl ether

Conditions

Conditions	Yield
With sulfuric acid for 8h; Heating;	71%

: 109976-00-3
1,2,3-tri-tert-butylazadiboridine

: 563-78-0
2,3-Dimethyl-1-butene

: 367941-22-8
1,2,5,-tri-tert-butyl-3-isopropyl-3-methyl-1-aza-2,5-diboracyclopentane

Conditions

Conditions	Yield
In pentane soln. of compds. stirred at room temp. for 3 h; volatiles removed in vac., pure liquid product condensed into cooled receiver at 60°C/0.001 mbar; elem. anal.;	71%

: 872513-93-4
(2S)-methyl 2-N-benzoylamino-5-methylhex-4-enoate

: 563-78-0
2,3-Dimethyl-1-butene

: 1440507-70-9
(S,E)-methyl 2-benzamido-5,6-dimethylhept-4-enoate

Conditions

Conditions	Yield
With Hoveyda-Grubbs catalyst second generation In benzene at 100℃; for 24h; Inert atmosphere; Sealed tube;	71%

: 563-78-0
2,3-Dimethyl-1-butene

: (22R)-22-acetoxy-6,6-ethylenedioxy-3α,5-cyclo-24-norcholane-23-al oxime

: 228861-07-2
(22R,5'ξ)-22-acetoxy-22-(5'-isopropyl-5'-methylisoxazolin-3'-yl)-6,6-ethylenedioxy-3α,5-cyclo-23,24-dinorcholane

Conditions

Conditions	Yield
With N-chloro-succinimide; triethylamine In chloroform for 2h;	70%

: 108-91-8
cyclohexylamine

: 563-78-0
2,3-Dimethyl-1-butene

: N-(2,3-dimethylbutyl)cyclohexanamine

Conditions

Conditions	Yield
With 2,4,6-Triisopropylthiophenol; C36H16F16IrN4(1+)*F6P(1-) In 1,4-dioxane at 35℃; Glovebox; Irradiation; chemoselective reaction;	70%

: 201230-82-2
carbon monoxide

: 563-78-0
2,3-Dimethyl-1-butene

: 19353-21-0
3,4-dimethylpentanal

Conditions

Conditions	Yield
With acetylacetonatodicarbonylrhodium(l); C50H59Fe2NP2; hydrogen In toluene at 120℃; under 56255.6 Torr; for 16h;	69%
With hydrogen; carbonylhydridetris(triphenylphosphine)rhodium(I); (-)-Diop at 95℃; under 40 Torr; for 96h; Yield given;
With carbonylhydridetris(triphenylphosphine)rhodium(I); hydrogen In toluene at 60℃; under 11400 Torr; for 2h; Product distribution; Further Variations:; Solvents; Reagents; Pressures;

: 563-78-0
2,3-Dimethyl-1-butene

: 501-65-5
diphenyl acetylene

: C20H22

Conditions

Conditions	Yield
With silver hexafluoroantimonate In chloroform for 24h;	68%

: 563-78-0
2,3-Dimethyl-1-butene

: 684-16-2
Hexafluoroacetone

: 16203-14-8
1,1,1-trifluoro-4,5-dimethyl-2-trifluoromethyl-hex-4-en-2-ol

Conditions

Conditions	Yield
With 3 Å molecular sieves at 100℃; for 0.166667h; Microwave irradiation;	67%

: thallium ortho-dicarbollide

: 563-78-0
2,3-Dimethyl-1-butene

: dichloroborane dioxane complex

: 1356386-29-2
C2B10H11CH2CH(CH3)CH(CH3)2

Conditions

Yield

In dichloromethane byproducts: thallium(I) chloride; (Ar); using Schlenk techniques; addn. of soln. of HBCl2*dioxane in CH2Cl2 to stirred soln. of 2,2-dimethyl-1-butene in CH2Cl2 for 10 min, stirring at room temp. for 2 h, addn. to suspn. of Tl2C2B9H11 in CH2Cl2 for 5 min, stirring at room temp. for 18 h; filtration through paper filter, washing of ppt. on filter with CH2Cl2, evapn. with silica, placing on top of silica column in hexane, eluting with hexane, evapn., drying under vac.;

66%

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