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Pivaloylacetonitrile

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Name

Pivaloylacetonitrile

EINECS 262-017-1
CAS No. 59997-51-2 Density 0.929 g/cm3
PSA 40.86000 LogP 1.51528
Solubility Insoluble in water. Melting Point 66-69 °C(lit.)
Formula C7H11NO Boiling Point 236 °C at 760 mmHg
Molecular Weight 125.17 Flash Point 59.5 °C
Transport Information UN 3439 6.1/PG 3 Appearance white to cream crystals or crystalline powder
Safety 36/37/39-45 Risk Codes 25
Molecular Structure Molecular Structure of 59997-51-2 (Pivaloylacetonitrile) Hazard Symbols ToxicT
Synonyms

Cyanopinacolone;Valeronitrile,4,4-dimethyl-3-oxo- (6CI);4,4-Dimethyl-3-oxopentanenitrile;

Article Data 47

Pivaloylacetonitrile Synthetic route

773837-37-9

sodium cyanide

13547-70-1

1-chloro-3,3-dimethyl-butan-2-one

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
With sodium carbonate; sodium iodide In methanol at 60℃; for 3h;95%
13547-70-1

1-chloro-3,3-dimethyl-butan-2-one

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
In methanol; sodium hydroxide90%
75-97-8

3,3-dimethyl-butan-2-one

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
With hydrogenchloride; sodium hydroxide; sodium bicarbonate; chlorine In methanol; water; benzene85%
Multi-step reaction with 2 steps
1: chloroform; SnCl4; bromine / -15 °C
2: alcohol / K-Salz
View Scheme

4,4-dimethyl-3-ketovaleronitrile sodium salt

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
With hydrogenchloride In water; dimethyl sulfoxide; toluene at 30℃; pH=2.0; Product distribution / selectivity;78%
With hydrogenchloride In water; toluene at 20 - 30℃; pH=2.0; Product distribution / selectivity;58%
With hydrogenchloride In water at 0℃; pH=7.0 - 7.7; Product distribution / selectivity;57%
64214-60-4

N-methoxy-N-methylpivalamide

75-05-8

acetonitrile

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
Stage #1: acetonitrile With methyllithium; lithium bromide In tetrahydrofuran; diethyl ether at -78℃; for 0.5h; Inert atmosphere;
Stage #2: N-methoxy-N-methylpivalamide In tetrahydrofuran; diethyl ether at -78℃; for 1.5h; Inert atmosphere;
74%
598-98-1

Methyl pivalate

75-05-8

acetonitrile

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
With bromobenzene Ambient temperature; electrolysis;60%
With bromobenzene; tetrabutylammonium tetrafluoroborate electroreduction;60%
Stage #1: acetonitrile With sodium hydride In 1,4-dioxane; paraffin oil (nujol) for 0.75h;
Stage #2: Methyl pivalate In 1,4-dioxane; paraffin oil (nujol) for 3h; Reflux;
51%
3282-30-2

pivaloyl chloride

75-05-8

acetonitrile

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
Stage #1: acetonitrile With n-butyllithium In tetrahydrofuran at -78℃; for 1h; Inert atmosphere;
Stage #2: pivaloyl chloride In tetrahydrofuran at -78℃; for 1h; Inert atmosphere;
41%
64-17-5

ethanol

2-chloromethyl-2-hydroxy-3,3-dimethyl-butyronitrile

141-52-6

sodium ethanolate

A

2,3-epoxy-2-tert-butyl-propionitrile

B

59997-51-2

trimethylacetylacetonitrile

13547-70-1

1-chloro-3,3-dimethyl-butan-2-one

143-33-9

sodium cyanide

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
With ethanol
13547-70-1

1-chloro-3,3-dimethyl-butan-2-one

151-50-8

potassium cyanide

A

2,3-epoxy-2-tert-butyl-propionitrile

B

59997-51-2

trimethylacetylacetonitrile

Conditions
ConditionsYield
With water

Pivaloylacetonitrile Specification

The CAS register number of Pentanenitrile,4,4-dimethyl-3-oxo- is 59997-51-2. It also can be called as 4,4-Dimethyl-3-oxovaleronitrile and the IUPAC name about this chemical is 4,4-dimethyl-3-oxopentanenitrile. The molecular formula about this chemical is C7H11NO and the molecular weight is 125.17. It belongs to the following product categories, such as Building Blocks; Aliphatics; Ketone and so on. If you wan to store this chemical, please keep it in a closed container and store it in a cool, dry place.

Physical properties about Pentanenitrile,4,4-dimethyl-3-oxo- are: (1)ACD/LogP: 0.55; (2)ACD/LogD (pH 5.5): 0.55; (3)ACD/LogD (pH 7.4): 0.55; (4)ACD/BCF (pH 5.5): 1.53; (5)ACD/BCF (pH 7.4): 1.53; (6)ACD/KOC (pH 5.5): 47.26; (7)ACD/KOC (pH 7.4): 47.2; (8)#H bond acceptors: 2; (9)#Freely Rotating Bonds: 2; (10)Polar Surface Area: 40.86Å2; (11)Index of Refraction: 1.424; (12)Molar Refractivity: 34.38 cm3; (13)Molar Volume: 134.6 cm3; (14)Polarizability: 13.63x10-24cm3; (15)Surface Tension: 31.5 dyne/cm; (16)Enthalpy of Vaporization: 47.27 kJ/mol; (17)Boiling Point: 236 °C at 760 mmHg; (18)Vapour Pressure: 0.0486 mmHg at 25°C.

Preparation: this chemical can be prepared by acetonitrile and 2,2-dimethyl-propionic acid methyl ester. This reaction will need reagent bromobenzene at ambient temperature//electrolysis. The yield is about 60%.

Uses of Pentanenitrile,4,4-dimethyl-3-oxo-: it can be used to produce 3-tert-butyl-isoxazol-5-ylamine. This reaction will need reagent sodium acetate, acetic acid and NH2OH+HCl.

When you are using this chemical, please be cautious about it as the following:
This chemical is toxic if swallowed. When you are using it, wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

You can still convert the following datas into molecular structure:
(1)SMILES: N#CCC(=O)C(C)(C)C
(2)InChI: InChI=1/C7H11NO/c1-7(2,3)6(9)4-5-8/h4H2,1-3H3
(3)InChIKey: MXZMACXOMZKYHJ-UHFFFAOYAF
(4)Std. InChI: InChI=1S/C7H11NO/c1-7(2,3)6(9)4-5-8/h4H2,1-3H3
(5)Std. InChIKey: MXZMACXOMZKYHJ-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 skin > 1gm/kg (1000mg/kg)   National Technical Information Service. Vol. OTS0555393,
rat LD50 oral 283mg/kg (283mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
National Technical Information Service. Vol. OTS0555393,

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