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23439-91-0

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23439-91-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23439-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,4,3 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23439-91:
(7*2)+(6*3)+(5*4)+(4*3)+(3*9)+(2*9)+(1*1)=110
110 % 10 = 0
So 23439-91-0 is a valid CAS Registry Number.

23439-91-0SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name (+)-(R)-2,2-dimethyl-1-phenylpropan-1-ol

1.2 Other means of identification

Product number -
Other names (R)-(+)-1-phenyl-2,2-dimethylpropanol

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:23439-91-0 SDS

23439-91-0Relevant articles and documents

Rhodium(I)-, iridium(I)-, and ruthenium(II)-catalyzed asymmetric transfer hydrogenation of ketones using diferrocenyl dichalcogenides as chiral ligands

Nishibayashi, Yoshiaki,Singh, Jai Deo,Arikawa, Yasuyoshi,Uemura, Sakae,Hidai, Masanobu

, p. 13 - 18 (1997)

[R,S;R,S]-Bis[2-[1-(dimethylamino)ethyl]ferrocenyl] dichalcogenides, (R,S)-{[EC5H3CHMe(NMe2)]Fe(C5H5)}2 (E = S, Se, Te), act as chiral ligands for Rh(I)-catalyzed asymmetric transfer hydrog

Manganese(I)-Catalyzed H-P Bond Activation via Metal-Ligand Cooperation

Pérez, Juana M.,Postolache, Roxana,Casti?eira Reis, Marta,Sinnema, Esther G.,Vargová, Denisa,De Vries, Folkert,Otten, Edwin,Ge, Luo,Harutyunyan, Syuzanna R.

supporting information, p. 20071 - 20076 (2021/12/03)

Here we report that chiral Mn(I) complexes are capable of H-P bond activation. This activation mode enables a general method for the hydrophosphination of internal and terminal α,β-unsaturated nitriles. Metal-ligand cooperation, a strategy previously not considered for catalytic H-P bond activation, is at the base of the mechanistic action of the Mn(I)-based catalyst. Our computational studies support a stepwise mechanism for the hydrophosphination and provide insight into the origin of the enantioselectivity.

PQXdpap: Helical Poly(quinoxaline-2,3-diyl)s Bearing 4-(Dipropylamino)pyridin-3-yl Pendants as Chirality-Switchable Nucleophilic Catalysts for the Kinetic Resolution of Secondary Alcohols

Murakami, Ryo,Suginome, Michinori,Yamamoto, Takeshi

supporting information, p. 8711 - 8716 (2021/11/24)

Helically chiral poly(quinoxaline-2,3-diyl)s bearing 4-(dipropylamino)pyridin-3-yl pendants at the 5-position of the quinoxaline ring (PQXdpap) exhibited high catalytic activities and moderate to high selectivities (up to s = 87) in the acylative kinetic resolution of secondary alcohols. The solvent-dependent helical chirality switching of PQXdpap between pure toluene and a 1:1 mixture of toluene and 1,1,2-trichloroethane enabled the preparation of either compound of a pair of enantiomerically pure alcohols (>99% ee) from a single catalyst.

Direct Asymmetric Hydrogenation and Dynamic Kinetic Resolution of Aryl Ketones Catalyzed by an Iridium-NHC Exhibiting High Enantio- and Diastereoselectivity

Ayya Swamy P, Chinna,Varenikov, Andrii,de Ruiter, Graham

supporting information, p. 2333 - 2337 (2020/02/11)

A chiral iridium carbene-oxazoline catalyst is reported that is able to directly and efficiently hydrogenate a wide variety of ketones in excellent yields and good enantioselectivity (up to 93 % ee). Moreover, when using racemic α-substituted ketones, excellent diastereoselectivities were obtained (dr 99:1) by dynamic kinetic resolution of the in situ formed enolate. Overall, the herein described hydrogenation occurs under ambient conditions using low hydrogen pressures, providing a direct and atom efficient method towards chiral secondary alcohols.

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