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CAS No.: | 557-20-0 |
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Name: | Diethylzinc |
Article Data: | 57 |
Molecular Structure: | |
Formula: | C4H10Zn |
Molecular Weight: | 123.513 |
Synonyms: | HSDB 929;Zinc ethide;Diethylzinc; |
EINECS: | 209-161-3 |
Density: | 0.726 g/cm3 |
Melting Point: | -39--28 °C |
Boiling Point: | 118 °C |
Flash Point: | -40 °C |
Solubility: | Reacts violently with water |
Appearance: | Clear, colorless liquid |
Hazard Symbols: | F,Xn,N,C |
Risk Codes: | 14-17-34-50/53-67-65-62-48/20-11-51/53-14/15-63 |
Safety: | 26-45-61-62-8-36/37/39-16-60-43 |
Transport Information: | UN 3399 4.3/PG 1 |
PSA: | 0.00000 |
LogP: | 1.94530 |
Conditions | Yield |
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In neat (no solvent) Sonication; (N2), ZnCl2 introduced into a flask connected to a condenser containingalcohol at -20°C, Et3Al (Et3Al/ZnCl2 2.2) dropped into flask over 10 min at room temp., stirred and heated at 100°C for 1 hed forfurther 20 min; distd.; NMR; | 86% |
In neat (no solvent) Sonication; (N2), ZnCl2 introduced into a flask connected to a condenser containingalcohol at -20°C, Et3Al (Et3Al/ZnCl2 2.4) dropped into flask over 10 min at room temp., stirred and heated at 100°C for 1 hed forfurther 20 min; distd.; NMR; | 85.2% |
In neat (no solvent) Sonication; (N2), ZnCl2 introduced into a flask connected to a condenser containingalcohol at -20°C, Et3Al (Et3Al/ZnCl2 2.6) dropped into flask over 10 min at room temp., stirred and heated at 100°C for 1 hed forfurther 20 min; distd.; NMR; | 81.1% |
Conditions | Yield |
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With copper(l) iodide; ethylzinc bromide In neat (no solvent) CuI, Zn were placed in reactor, evacuated for 10 min, filled with Ar, ligand and EtZnBr were added, heated to 38-40°C for 4.5 h, cooled to room temp.; vac. distilled; | 82% |
triethyl-alane; compound with diethyl ether
zinc(II) chloride
diethylzinc
Conditions | Yield |
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In neat (no solvent) Sonication; (N2), ZnCl2 introduced into a flask connected to a condenser containingalcohol at -20°C, Et3Al*Et2O (Et3Al*Et2O/ZnCl2 2.6) dropped intoflask over 10 min at room temp., stirred and heated at 100°C for1 hed for further 20 min; distd.; NMR; | 82% |
In neat (no solvent) Sonication; (N2), ZnCl2 introduced into a flask connected to a condenser containingalcohol at -20°C, Et3Al*Et2O (Et3Al*Et2O/ZnCl2 2.2) dropped intoflask over 10 min at room temp., stirred and heated at 100°C for1 hed for further 20 min; distd.; NMR; | 80% |
In neat (no solvent) Sonication; (N2), ZnCl2 introduced into a flask connected to a condenser containingalcohol at -20°C, Et3Al*Et2O (Et3Al*Et2O/ZnCl2 2.4) dropped intoflask over 10 min at room temp., stirred and heated at 100°C for1 hed for further 20 min; distd.; NMR; | 80.5% |
Conditions | Yield |
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In diethyl ether at -10 - -5℃; for 10h; Large scale; | 81% |
In not given treatment of (ethyl)Li with 0.5 equiv. of ZnCl2; |
Conditions | Yield |
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In benzene byproducts: methyl acetate; under N2, soln. of EtZnOMe and CH3COOC(t-Bu)CH2 in C6H6 slowly heated to 60°C for 1 h; volatiles (methyl acetate, Et2Zn) removed, residue dissolved in pentane, cooled to -30°C; | A 20% B n/a |
Conditions | Yield |
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With coppered zinc |
Conditions | Yield |
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With zinc(II) chloride |
ethyl-isobutyl zinc
diethylzinc
Conditions | Yield |
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at 25℃; Geschwindikeit der Umlagerung; |
Conditions | Yield |
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With zinc at 100℃; |
Presumed to be a poison. Ignites spontaneously in air. Dangerously flammable by spontaneous chemical reaction in air, or with oxidizing materials. A dangerous explosion hazard. Explosive reaction with alkenes + diiodomethane, sulfur dioxide. Reacts violently with bromine, water, nitro compounds. Ignites on contact with air, ozone, methanol, or hydrazine. Reacts violently with nonmetal halides (e.g., arsenic trichloride or phosphorus trichloride) to produce pyrophoric triethyl arsine or triethyl phosphine. To fight fire, do not use water, foam, or halogenated extinguishing agents. Use dry materials, such as graphite, sand, etc. When heated to decomposition it emits toxic fumes of ZnO. See also ZINC COMPOUNDS.
Diethylzinc's Safety Information
Hazard Codes F,Xn,N,C
RIDADR UN 3399 4.3/PG 1
WGK Germany 2
RTECS ZH2077777
F 10-23
TSCA Yes
HazardClass 4.3
EC Risk Phrase 21/22 50/53
EC Safety Phrase 36/37 60 61
PackingGroup I