4-Phenyl-2-butanol

CAS No.：2344-70-9

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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4-Phenyl-2-butanol Basic information

Product Name:	4-Phenyl-2-butanol
Synonyms:	4-Phenylbutan-2-ol;alpha-methyl-benzenepropano;AURORA KA-6974;FEMA 2879;ALPHA-METHYL-BENZENEPROPANOL;(+/-)-4-PHENYL-2-BUTANOL;4-PHENYL-2-BUTANOL;PHENYLETHYL METHYL CARBINOL
CAS:	2344-70-9
MF:	C10H14O
MW:	150.22
EINECS:	219-055-9
Product Categories:
Mol File:	2344-70-9.mol

4-Phenyl-2-butanol Chemical Properties

Melting point	61 °C
Boiling point	132 °C/14 mmHg (lit.)
density	0.970 g/mL at 25 °C (lit.)
refractive index	n20/D 1.5140(lit.)
FEMA	2879 \| 4-PHENYL-2-BUTANOL
Fp	231 °F
storage temp.	Sealed in dry,Room Temperature
pka	15.10±0.20(Predicted)
form	liquid
JECFA Number	815
BRN	1908294
CAS DataBase Reference	2344-70-9(CAS DataBase Reference)
NIST Chemistry Reference	4-Phenyl-2-butanol(2344-70-9)

Safety Information

Safety Statements	24/25
WGK Germany	3
HS Code	29062900

MSDS Information

Provider	Language
4-Phenyl-2-butanol	English
SigmaAldrich	English
ACROS	English

4-Phenyl-2-butanol Usage And Synthesis

Chemical Properties	CLEAR COLOURLESS LIQUID
Chemical Properties	4-Phenyl-2-butanol has a herbaceous, aromatic, floral-fruity odor.
Uses	4-Phenyl-2-butanol is a reagent used for the direct alkylation of amines with primary and secondary alcohols through biocatalytic hydrogen borrowing. It is also used in the preparation of personal care composition comprising malodor reduction compositions.
Preparation	The optically inactive product can be prepared by hydrogenation of benzylidene acetone in alcohol solution; under pressure in the presence of platinum oxide, palladium oxide or ferrous sulfate; by reduction with magnesium in methanol.
Synthesis Reference(s)	Tetrahedron Letters, 30, p. 6461, 1989 DOI: 10.1016/S0040-4039(01)88994-2
General Description	4-Phenyl-2-butanol undergoes (η⁵-pentaphenylcyclopentadienyl)RuCl(CO)₂ catalyzed racemization efficiently at room temperature in the presence of a base. 4-Phenyl-2-butanol on reaction with sulfuric acid yields polymer.

4-Phenyl-2-butanol Preparation Products And Raw materials

Raw materials	1-Naphthalenemethanol-->2H-Pyran, tetrahydro-2-(1-methyl-3-phenylpropoxy)--->3-Buten-2-ol, 4-phenyl-, (3E)--->1,5-diphenylpentan-3-ol-->4-Phenylcyclohexanone-->Phenylpropyl aldehyde-->trans-4-Phenyl-3-buten-2-one-->Methylmagnesium Bromide-->Isopropyl alcohol-->Benzalacetone-->Benzyl alcohol
Preparation Products	Benzylacetone-->1-PENTANOL, 3-METHYL-5-PHENYL

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