CAS No.20485-44-3,2,3-Diamino-2,3-dimethylbutane Suppliers

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2,3-Diamino-2,3-dimethylbutane

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20485-44-3 Application:intermediate

2,3-Butanediamine, 2,3-dimethyl-

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2,3-DIAMINO-2,3-DIMETHYLBUTANE

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2,3-Diamino-2,3-dimethylbutaneAppearance:Off white to slight yellow solid Storage:Store in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/Pharmaceutical intermediates Transportation:By Sea,by Air,By

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2,3-Diamino-2,3-dimethylbutane

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Synthetic route

: 3964-18-9
2,3-dimethyl-2,3-dinitrobutane

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

Conditions

Conditions	Yield
With hydrogenchloride; tin for 3h; Heating;	81%
With hydrogenchloride; tin	75%
With hydrogenchloride; tin In water at 105℃; for 4h;	60%

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

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

Conditions

Conditions	Yield
With lithium aluminium tetrahydride; 2; nitrogen(II) oxide 1) THF, 0 deg C, 85 min; 2) THF, -70 deg C, room temperature (overnight), reflux (1 h); Yield given. Multistep reaction;
Multi-step reaction with 2 steps 1: diethyl ether; dinitrogen tetraoxide / -20 - -16 °C 2: platinum; glacial acetic acid / Hydrogenation View Scheme

: 75-31-0
isopropylamine

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 131611-95-5
{Co(tmen)3}(3+)

A: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

B: cobalt(II)

Conditions

Conditions	Yield
With V(2+)aq. In perchloric acid Kinetics; reduction with V(2+)aq. at 25°C in 1M HClO4; monitored spectrophotometrically;
With Cr(2+)aq. In further solvent(s) Kinetics; reduction with Cr(2+)aq. at 25°C in 1M CF3SO3Na + 0.1M CF3SO3H; monitored spectrophotometrically;
With Eu(2+)aq. In perchloric acid Kinetics; redution with Eu(2+)aq. at 25°C in 1M HClO4; monitored spectrophotometrically;

: 131611-95-5
{Co(tmen)3}(3+)

: 82796-47-2, 63218-22-4, 82837-80-7
Co(sep)(2+)

A: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

B: cobalt(II)

Conditions

Conditions	Yield
In further solvent(s) Kinetics; reduction at 25°C in 0.2 M NaCl; monitored spectrophotometrically;

...Expand

: 131611-95-5
{Co(tmen)3}(3+)

: 30251-71-9
hexaaquaruthenium(II)

A: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

B: cobalt(II)

Conditions

Conditions	Yield
In further solvent(s) Kinetics; at 25°C in 1M CF3SO3Na + 0.1M CF3SO3H; monitored spectrophotometrically;

...Expand

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 100-52-7
benzaldehyde

: 351902-03-9
2-Phenyl-4,4,5,5-tetramethylimidazolidine

Conditions

Conditions	Yield
In diethyl ether ice cooling;	99%

: butyl-hydroxy-toluene

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 6900-35-2
potassium methacrylate

: 104-83-6
1-Chloro-4-(chloromethyl)benzene

Conditions

Conditions	Yield
In toluene	98.2%

...Expand

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 6900-35-2
potassium methacrylate

Conditions

Conditions	Yield
In toluene	97.4%

...Expand

2,3-dimethyl-2,3-diaminobutane: 2,3-dimethyl-2,3-diaminobutane

: 90-02-8
salicylaldehyde

: 60306-02-7
N,N'-(1,1,2,2-tetramethylethylene)bis(salicylideneimine)

Conditions

Conditions	Yield
	96%
With ethanol

: 32161-06-1
1-acetyl-4-piperidinone

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 113646-69-8
8-acetyl-2,2,3,3-tetramethyl-1,4,8-triazaspiro<4.5>decane

Conditions

Conditions	Yield
With potassium carbonate; toluene-4-sulfonic acid In benzene for 48h; Heating;	95%

: 500-22-1
3-pyridinecarboxaldehyde

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 351902-05-1
3-(4,4,5,5-tetramethyl-imidazolidin-2-yl)-pyridine

Conditions

Conditions	Yield
In diethyl ether ice cooling;	95%

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 630-19-3
pivalaldehyde

: 351902-08-4
2-tert-butyl-4,4,5,5-tetramethyl-imidazolidine

Conditions

Conditions	Yield
In diethyl ether ice cooling;	95%

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 555-16-8
4-nitrobenzaldehdye

: 351902-04-0
4,4,5,5-tetramethyl-2-(4-nitro-phenyl)-imidazolidine

Conditions

Conditions	Yield
In diethyl ether ice cooling;	92%

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 102308-32-7
(4S)-4-formyl-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

: 1571095-85-6
tert-butyl (4R)-2,2-bimethyl-4-(4,4,5,5-tetramethylimidazolidine-2-yl)-1,3-oxazolidine-3-carboxylate

Conditions

Conditions	Yield
In dichloromethane for 19h; Reflux; Molecular sieve;	92%

Conditions

Conditions	Yield
In ethanol OsCl3*3H2O reacting with excess base in EtOH at 50°C for 10 min; pptn.; elem. anal.;	90%

2,3-dimethyl-2,3-diaminobutane: 2,3-dimethyl-2,3-diaminobutane

sodium iodide: sodium iodide

: Os(NHC(CH3)2C(CH3)2NH2)2(NH2C(CH3)2C(CH3)2NH2)(2+)*2I(1-)*H2O={Os(NHC(CH3)2C(CH3)2NH2)2(NH2C(CH3)2C(CH3)2NH2)}I2*H2O

Conditions

Conditions	Yield
In water addn. of Os-salt to excess base in H2O; keeping at 40°C for 30 min, addn. of NaI; brown ppt.; filtration; washing (ice-cold H2O, EtOH; ether); recrystn. (H2O); elem. anal.;	90%

...Expand

: diammonium hexachloroosmate(IV)

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 7681-82-5
sodium iodide

: Os(NHC(CH3)2C(CH3)2NH2)2(NH2C(CH3)2C(CH3)2NH2)(2+)*2I(1-)*H2O={Os(NHC(CH3)2C(CH3)2NH2)2(NH2C(CH3)2C(CH3)2NH2)}I2*H2O

Conditions

Conditions	Yield
In water addn. of Os-salt to excess base in H2O; keeping at 40°C for 30 min, addn. of NaI; brown ppt.; filtration; washing (ice-cold H2O, EtOH; ether); recrystn. (H2O); elem. anal.;	90%

...Expand

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 54149-17-6
1-bromo-2-(2-methoxyethoxy)ethane

: 1774-34-1
bis(4-hydroxyphenyl) sulfoxide

: 1379476-07-9
4,4'-sulfinylbis((2-(2-methoxyethoxy)ethoxy)benzene)

Conditions

Conditions	Yield
With potassium carbonate In dimethyl sulfoxide	90%

...Expand

: 26163-07-5
5-bromo-2-dimethylaminopyridine

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 149805-92-5
6-(dimethylamino)nicotine-3-carboxaldehyde

Conditions

Conditions	Yield
In diethyl ether; N,N-dimethyl-formamide	89.6%

: 50-00-0
formaldehyd

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 351902-06-2
4,4,5,5-tetramethyl-imidazolidine

Conditions

Conditions	Yield
In diethyl ether ice cooling;	89%

: nickel(II) chloride hexahydrate

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 714916-55-9
5-(azidomethyl)-2-hydroxybenzaldehyde

: 1427467-70-6
C22H24N8NiO2

Conditions

Conditions	Yield
Stage #1: 2,3-dimethyl-2,3-diaminobutane; 5-(azidomethyl)-2-hydroxybenzaldehyde In ethanol Inert atmosphere; Schlenk technique; Stage #2: nickel(II) chloride hexahydrate With triethylamine In ethanol Inert atmosphere; Schlenk technique;	88%

...Expand

: 597-31-9
2,2-dimethyl-3-hydroxypropionaldehyde

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 1309974-80-8
2-(4',4',5',5'-tetramethylimidazolidine-2'-yl)-2-methylpropanol

Conditions

Conditions	Yield
In chloroform for 24h; Molecular sieve; Reflux;	87%

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: disodium 3-(2-methoxyethoxy)salicylaldehyde-5-sulfonate

: 6018-89-9
nickel(II) acetate tetrahydrate

: C26H32N2NiO12S2(2-)*2Na(1+)

Conditions

Conditions	Yield
In water at 20℃; for 1h;	86.5%

...Expand

: 40927-82-0
(2-furyl)diphenylphosphane

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: sodium 5-(diphenylphosphanyl)-furyl-2-carboxylate

Conditions

Conditions	Yield
With hydrogenchloride; sodium hydroxide; n-butyllithium; nitrogen In diethyl ether; water; sodium hydrogencarbonate	85%

: ammonium hexafluorophosphate

: 69141-04-4
trichloro(2,2'-bipyridine)ruthenium

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 7440-66-6
zinc

: [Ru(II)(2,2'-bipyridine)(2,3-diamino-2,3-dimethylbutane)2](PF6)2

Conditions

Conditions	Yield
In ethanol refluxing Ru-complex, ligand and Zn-dust for 6 h, cooling, filtration, addn. of satd. NH4PF6; concn. (reduced pressure), collection, washing (water, Et2O); elem. anal.;	85%

...Expand

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 24424-99-5
di-tert-butyl dicarbonate

: 1306610-31-0
N-tert-butoxycarbonyl-2,3-dimethyl-2,3-diaminobutane

Conditions

Conditions	Yield
In dichloromethane at 20℃; for 7h; Inert atmosphere;	85%

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 105-53-3
diethyl malonate

: 92958-09-3
5-carbethoxy-2,2,3,3-tetramethyl-2,3-dihydropyrazin-6-one

Conditions

Conditions	Yield
In ethanol 1) r.t, 45 h, 2) reflux, 7.5 h;	83%

4-(trifluoromethyl)phenyl 2-tetrahydropyranyl ether: 4-(trifluoromethyl)phenyl 2-tetrahydropyranyl ether

: 1634-04-4
tert-butyl methyl ether

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 882-33-7
diphenyldisulfane

: 2-[2-(phenylsulfanyl)-4-(trifluoromethyl)phenoxy]tetrahydro-2H-pyran

Conditions

Conditions	Yield
With n-butyllithium In tetrahydrofuran; hexane; water	82.7%

...Expand

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 10025-73-7
chromium(III) chloride

: tris(2,3-diamino-2,3-dimethylbutane)chromium(III)(Cl)3

Conditions

Conditions	Yield
With zinc In tetrahydrofuran A slurry of CrCl3, 2,3-diamino-2,3-dimethylbutane and a grain of zinc was boiled under reflux for 200 h. Moisture was excluded by means of a CaCl2 tube.; removing of the remaining zinc, centrifugation, washing with 2 M HCl, drying in vacuo;	80%

: 7647-01-0
hydrogenchloride

: 69141-04-4
trichloro(2,2'-bipyridine)ruthenium

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 7440-66-6
zinc

: 177416-75-0
[Ru(II)(2,2'-bipyridine)(2,3-diamino-2,3-dimethylbutane)2][ZnCl4]

Conditions

Conditions	Yield
In ethanol refluxing Ru-complex, ligand and Zn-dust for 6 h, cooling, filtration, addn. of 0.2 M HCl; concn. (reduced pressure), collection, washing (water, Et2O); elem. anal.;	80%

...Expand

: ruthenium(III) chloride trihydrate

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 1761-56-4
2-[[(2-hydroxyphenyl)imino]methyl]phenol

: 7732-18-5
water

: 1239712-76-5
aquotetramethylethylenediamine(2-hydroxyphenyl-2-salicylaldiminato)ruthenium(III)chloride

Conditions

Conditions	Yield
In methanol C6H16N2 added to MeOH soln. of C13H11NO2, then Ru salt added, mixt. refluxed for 8 h; ppt. sepd., filtered, washed (H2O, little MeOH), dried in desiccator over CaCl2; elem. anal.;	80%

...Expand

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 1448442-53-2
2-hydroxy-2',4',5,6'-tetramethyl-[1,1'-biphenyl]-3-carbaldehyde

: 1448442-60-1
3,3''-((1E,1'E)-((2,3-dimethylbutane-2,3-diyl)bis(azanylylidene))bis(methanylylidene))bis(2',4',5,6'-tetramethyl-[1,1'-biphenyl]-2-ol)

Conditions

Conditions	Yield
With air In methanol at 65℃; for 7h;	80%

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

: 24623-61-8
3,5-dimethylsalicylaldehyde

: 6,6′-((1E,1′E)-((2,3-dimethylbutane-2,3-diyl)bis(azanylylidene))-bis(methanylylidene))bis(2,4-dimethylphenol)

Conditions

Conditions	Yield
In methanol at 70℃; for 12h;	80%

aqueous Na2 CO3: aqueous Na2 CO3

: 121-43-7
Trimethyl borate

: 20485-44-3
2,3-dimethyl-2,3-diaminobutane

2-trityl-5-phenyl-2H-tetrazole: 87268-78-8
2-trityl-5-phenyl-2H-tetrazole

Conditions

Conditions	Yield
With sec.-butyllithium; Pd(PPh3)4 In tetrahydrofuran; benzene	79%

...Expand

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