Pivaloyl chloride

Pivaloyl chloride
Names
	Preferred IUPAC name 2,2-Dimethylpropanoyl chloride
	Other names Trimethylacetyl chloride; Pivaloyl chloride; Pivalyl chloride; neopentanoylchloride
Identifiers
CAS Number	3282-30-2;
3D model (JSmol)	Interactive image;
Beilstein Reference	102382
ChEMBL	ChEMBL3183814;
ChemSpider	56272;
ECHA InfoCard	100.019.929
EC Number	221-921-6;
PubChem CID	62493;
UNII	JQ82J0O21T;
UN number	2438
CompTox Dashboard (EPA)	DTXSID4027529 ;
	InChI InChI=1S/C5H9ClO/c1-5(2,3)4(6)7/h1-3H3 Key: JVSFQJZRHXAUGT-UHFFFAOYSA-N;
	SMILES CC(C)(C)C(=O)Cl;
Properties
Chemical formula	C5H9ClO
Molar mass	120.58 g·mol−1
Density	0.985
Melting point	−57 °C (−71 °F; 216 K)
Boiling point	105.5 °C (221.9 °F; 378.6 K)
Refractive index (nD)	1.412
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H290, H302, H314, H330
Precautionary statements	P210, P233, P234, P240, P241, P242, P243, P260, P264, P270, P271, P280, P284, P301 P312, P301 P330 P331, P303 P361 P353, P304 P340, P305 P351 P338, P310, P320, P321, P330, P363, P370 P378, P390, P403 P233, P403 P235, P404, P405, P501
Flash point	8 °C (46 °F; 281 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2,2-Dimethylpropanoyl chloride is a branched-chain acyl chloride.^[1] It was first made by Aleksandr Butlerov in 1874 by reacting pivalic acid with phosphorus pentachloride.^[2]

Pivaloyl chloride is used as an input in the manufacture of some drugs, insecticides and herbicides.

References

^ "2,2-dimethylpropanoyl chloride". ChemSynthesis. Retrieved 1 July 2017.
^ Buttlerow, A. (1874). "Ueber die Trimethylessigsäure". Justus Liebig's Annalen der Chemie (in German). 173 (2): 355–375. doi:10.1002/jlac.18741730217.

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