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104371-20-2

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104371-20-2 Usage

Purification Methods

Recrystallise the ethanol from n-pentane at -40o and sublime it at 25o/0.3mm (use ice-cooled cold finger). It has also been purified by column chromatography through Kieselgel 60 (0.063-0.2mm mesh, Merck) and eluted with EtOAc/n-hexane (1:5), then recrystallised from n-pentane and sublimed in a vacuum. It has RF on Kieselgel 60 F254 TLC foil and eluting with EtOAc/n-hexane (1:5). [Meese Justus Liebigs Ann Chem 2004 1986.]

Check Digit Verification of cas no

The CAS Registry Mumber 104371-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,3,7 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 104371-20:
(8*1)+(7*0)+(6*4)+(5*3)+(4*7)+(3*1)+(2*2)+(1*0)=82
82 % 10 = 2
So 104371-20-2 is a valid CAS Registry Number.
InChI:InChI=1/C8H5F5O/c1-2(14)3-4(9)6(11)8(13)7(12)5(3)10/h2,14H,1H3/t2-/m0/s1

104371-20-2 Well-known Company Product Price

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  • Sigma-Aldrich

  • (76746)  (S)-(−)-α-Methyl-2,3,4,5,6-pentafluorobenzylalcohol  for chiral derivatization, ≥99.0%

  • 104371-20-2

  • 76746-1G

  • 3,573.18CNY

  • Detail

104371-20-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name (1S)-1-(2,3,4,5,6-pentafluorophenyl)ethanol

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:104371-20-2 SDS

104371-20-2Relevant articles and documents

The influence of wavelength of light on cyanobacterial asymmetric reduction of ketone

Itoh, Ken-Ichi,Nakamura, Kaoru,Aoyama, Tadashi,Kakimoto, Tsuyoshi,Murakami, Masahiko,Takido, Toshio

, p. 435 - 437 (2014)

Asymmetric reduction of ketone by a microalga, Synechocystis sp. PCC 6803, smoothly afforded to the corresponding (S)-alcohol in excellent enantiomeric excess by the aid of illumination of orange and red LED lights which are more effective than other LEDs

Asymmetric Hydrogenation of Polysubstituted Aromatic Ketones Catalyzed by the DIPSkewphos/PICA Derivative–Ruthenium(II) Complexes

Utsumi, Noriyuki,Arai, Noriyoshi,Kawaguchi, Kei,Katayama, Takeaki,Yasuda, Toshihisa,Murata, Kunihiko,Ohkuma, Takeshi

, p. 3955 - 3959 (2018)

The DIPSkewphos/PICA derivative-Ru(II) complexes catalyzed asymmetric hydrogenation of significantly sterically hindered 2’,3’,4’,5’,6’-pentamethylacetophenone, which was not reduced with NaBH4 at 25 °C, with a substrate-to-catalyst molar ratio

Enantioselectivity in the Noyori?Ikariya asymmetric transfer hydrogenation of ketones

Dub, Pavel A.,Smith, Justin S.,Tkachenko, Nikolay V.,Tretiak, Sergei,Vyas, Vijyesh K.,Wills, Martin

, p. 1402 - 1410 (2021)

Asymmetric transfer hydrogenation (ATH) is an important catalytic process in the fragrance and pharmaceutical industries. The Noyori?Ikariya chiral molecular ruthenium complex has been the catalyst of choice for this reaction for over 25 years. The mechan

Asymmetric synthesis of optically active fluorine-containing alcohols by the catalytic enantioselective alkylation of aldehydes

Hayase, Tadakatsu,Sugiyama, Tadashi,Suzuki, Masanori,Shibata, Takanori,Soai, Kenso

, p. 1 - 5 (1997)

Optically active fluorine-containing alcohols with up to 97% enantiomeric excess were synthesized by the enantioselective addition of dialkylzincs to fluorine-containing aldehydes using chiral β-aminoalcohol catalysts such as N,N-dibutylnorephedrine (DBNE

Asymmetric Magnesium-Catalyzed Hydroboration by Metal-Ligand Cooperative Catalysis

Falconnet, Alban,Magre, Marc,Maity, Bholanath,Cavallo, Luigi,Rueping, Magnus

supporting information, p. 17567 - 17571 (2019/11/13)

Asymmetric catalysis with readily available, cheap, and non-toxic alkaline earth metal catalysts represents a sustainable alternative to conventional synthesis methodologies. In this context, we describe the development of a first MgII-catalyzed enantioselective hydroboration providing the products with excellent yields and enantioselectivities. NMR spectroscopy studies and DFT calculations provide insights into the reaction mechanism and the origin of the enantioselectivity which can be explained by a metal-ligand cooperative catalysis pathway involving a non-innocent ligand.

Asymmetric Hydrogenation of Aryl Perfluoroalkyl Ketones Catalyzed by Rhodium(III) Monohydride Complexes Bearing Josiphos Ligands

Brüning, Fabian,Nagae, Haruki,K?ch, Daniel,Mashima, Kazushi,Togni, Antonio

supporting information, p. 10818 - 10822 (2019/07/31)

The asymmetric hydrogenation of 2,2,2-trifluoroacetophenones and aryl perfluoroalkyl ketones was developed using a unique, well-defined chloride-bridged dinuclear rhodium(III) complex bearing Josiphos-type diphosphine ligands. These complexes were prepared from [RhCl(cod)]2, Josiphos ligands, and hydrochloric acid. As catalyst precursors, they allow for the efficient and enantioselective synthesis (up to 99 % ee) of chiral secondary alcohols with perfluoroalkyl groups. This system does not require an activating base for the hydrogenation of 2,2,2-trifluoroacetophenones. Additionally, the enantioselective C=O hydrogenations of 2-phenyl-3-(haloacetyl)-indoles, a class of privileged structures in medicinal chemistry, is reported for the first time.

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