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25705-34-4

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25705-34-4 Usage

Synthesis Reference(s)

Journal of the American Chemical Society, 79, p. 3165, 1957 DOI: 10.1021/ja01569a047Synthesis, p. 927, 1992 DOI: 10.1055/s-1992-26263

Check Digit Verification of cas no

The CAS Registry Mumber 25705-34-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,7,0 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 25705-34:
(7*2)+(6*5)+(5*7)+(4*0)+(3*5)+(2*3)+(1*4)=104
104 % 10 = 4
So 25705-34-4 is a valid CAS Registry Number.
InChI:InChI=1/C9H8O2/c10-6-5-8-3-1-2-4-9(8)7-11/h1-4,6-7H,5H2

25705-34-4SDS

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 2-(2-oxoethyl)benzaldehyde

1.2 Other means of identification

Product number -
Other names o-Formylphenylacetaldehyde

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:25705-34-4 SDS

25705-34-4Relevant articles and documents

Enantioselective synthesis of the strigolactone mimic (+)-GR24

Bromhead, Liam J.,Visser, Johan,McErlean, Christopher S. P.

, p. 1516 - 1520 (2014)

A short and cost-effective synthesis of the important strigolactone analogue (+)-GR24 is described. Central to this new approach is the concise, enantioselective synthesis of the A-C ring system.

Enhanced enantioselectivity in heterogeneous manganese-catalyzed asymmetric epoxidation with nanosheets modified amino acid Schiff bases as ligands by modulating the orientation and the arrangement order

An, Zhe,Han, Hongbo,He, Jing,Jiang, Yitao,Ping, Qi,Shu, Xin,Song, Hongyan,Tang, Yuanzhong,Wang, Wenlong,Xiang, Xu,Zhu, Yanru

, p. 22 - 36 (2021/08/25)

Catalytic enantioselective epoxidation of olefins plays an important role in the production of optically-active epoxy. Transition-metal complexes prove efficient for the catalytic epoxidation of un-functionalized olefins by employing privileged chiral lig

Pseudophedrine-Derived Myers Enolates: Structures and Influence of Lithium Chloride on Reactivity and Mechanism

Zhou, Yuhui,Jermaks, Janis,Keresztes, Ivan,MacMillan, Samantha N.,Collum, David B.

supporting information, p. 5444 - 5460 (2019/03/29)

The structures and reactivities of pseudoephedrine-derived dianionic Myers enolates are examined. A combination of NMR and IR spectroscopic, crystallographic, and computational data reveal that the homoaggregated dianions form octalithiated tetramers displaying S4-symmetric Li8O8 cores and overall C2 symmetry. Computational and isotopic labeling studies reveal strong N-Li contacts in the carboxamide enolate moiety. The method of continuous variations proves deceptive, as octalithiated tetrameric homoaggregates afford hexalithiated trimeric heteroaggregates. A lithium diisopropylamide-lithium enolate mixed aggregate is found to be a C2-symmetric hexalithiated species incorporating two enolate dianions and two lithium diisopropylamide (LDA) subunits. Structural and rate studies show that lithium chloride has little effect on the dynamics of the enolate homoaggregates but forms adducts of unknown structure. Rate studies of alkylations indicate that the aging of the aggregates can have effects spanning orders of magnitude. The LiCl-enolate adduct dramatically accelerates the reaction but requires superstoichiometric quantities owing to putative autoinhibition. Efforts and progress toward eliminating the requisite large excess of LiCl are discussed.

Copper Catalyzed One-Pot Three-Component Imination-Alkynylation-aza-Michael Sequence: Enantio- And Diastereoselective Syntheses of 1,3-Disubstituted Isoindolines and Tetrahydroisoquinolines

Das, Braja Gopal,Shah, Sadhna,Singh, Vinod K.

supporting information, p. 4981 - 4985 (2019/07/08)

An enantio- and diastereoselective syntheses of 1, 3-disubstituted isoindolines and tetrahydroisoquinolines via CuI-Pybox-diPh catalyzed one-pot imination-alkynylation-aza-Michael sequence has been reported. The three-component reaction produces one C-C and two C-N bonds sequentially with high yield (up to 92%), enantioselectivity (up to 99%), and diastereoselectivity (up to 9:1) in a single operation. Furthermore, the synthetic utility of the product has been demonstrated by LiAlH4 reduction of ester and hydrogenation of alkyne functionality without losing the stereoselectivity.

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