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Benzene, 1-(1-methylethyl)-4-(phenylthio)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

34349-69-4

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34349-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34349-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,3,4 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 34349-69:
(7*3)+(6*4)+(5*3)+(4*4)+(3*9)+(2*6)+(1*9)=124
124 % 10 = 4
So 34349-69-4 is a valid CAS Registry Number.

34349-69-4Downstream Products

34349-69-4Relevant academic research and scientific papers

Recyclable iron/graphite catalyst for c-s cross coupling of thiols with aryl halides under ligand-free conditions

Akkilagunta, Vijay Kumar,Reddy, Vutukuri Prakash,Rao, Kakulapati Rama

, p. 1260 - 1264 (2010)

A recyclable iron/graphite (Fe/Cg) catalyst for the efficient C-S cross-coupling of various iodoarenes with aromatic/aliphatic thiols has been developed under ligand-free conditions (26 examples, up to 99% yield). The catalyst can be easily recovered and recycled up to seven cycles without loss of activity. Georg Thieme Verlag Stuttgart.

Controlled Ni-catalyzed mono- and double-decarbonylations of α-ketothioesters

Zheng, Zhao-Jing,Jiang, Cheng,Shao, Peng-Cheng,Liu, Wen-Fei,Zhao, Tian-Tian,Xu, Peng-Fei,Wei, Hao

, p. 1907 - 1910 (2019/05/02)

A method for Ni-catalyzed controlled decarbonylation of α-ketothioesters is described. Mono- and double-decarbonylations, which gave thioesters and thioethers, respectively, were selectively achieved by changing the ligand. A fundamental study of Ni-catalyzed decarbonylation of α-ketothioesters is presented.

One-pot synthesis method for substituted diphenyl sulfide

-

Paragraph 0067; 0068; 0069, (2019/01/08)

The invention relates to a one-pot synthesis method for substituted diphenyl sulfide. The process comprises the following steps: adding thiophenol or diphenyl disulfide and derivatives thereof into asolvent, dropwise adding sulfonyl chloride for a reaction so as to obtain a substituted benzene sulfuryl chloride solution, removing a part of the solvent at a normal pressure, adding Lewis acid, thendropwise adding substituted benzene for a Friedel-Crafts reaction, and carrying out distillation or recrystallization so as to obtain the substituted diphenyl sulfide. The method provided by the invention has the advantages of high safety, simple and convenient raw material recovery, greatly-reducedpurifying difficulty, easily-available raw materials, simple unit operation, low requirements on reaction equipment, mild reaction conditions, high yield and content and applicability to industrial production; and the content of the finally obtained substituted diphenyl sulfide product generally reaches 98% or more.

Carbon-sulphur cross coupling reactions catalyzed by nickel-based coordination polymers based on metalloligands

Kumar, Gulshan,Hussain, Firasat,Gupta, Rajeev

, p. 15023 - 15031 (2017/11/14)

This work illustrates two Ni2+ based coordination polymers (CPs, 1-Ni and 2-Ni) synthesized using two related Co3+ based metalloligands offering appended arylcarboxylate groups. The crystal structure of 1-Ni displays a porous 3D network having well-defined major and minor pores whereas 2-Ni exhibits a somewhat densely packed structure. Both CPs supported the exchange of coordinated water molecules and the inclusion of iodine within their porous structure whereas binding studies illustrated that the Ni(ii) ion in these CPs can bind thiophenol, a reagent used in the C-S cross coupling reactions. The two CPs functioned as the reusable heterogeneous catalysts for the C-S cross coupling reactions between substituted aromatic halides and thiophenol as well as cyclohexanethiol and ethanethiol.

A highly efficient heterogeneous copper-catalyzed Chan-Lam coupling between thiols and arylboronic acids leading to diaryl sulfides under mild conditions

Lin, Yang,Cai, Mingzhong,Fang, Zhiqiang,Zhao, Hong

, p. 3335 - 3343 (2016/05/19)

The heterogeneous Chan-Lam coupling reaction between thiols and arylboronic acids was achieved in EtOH at room temperature in the presence of 5 mol % of MCM-41-immobilized 1,10-phenanthroline-copper(II) complex [MCM-41-1,10-Phen-CuSO4] with n-Bu4NOH (40% aq) as base under O2 atmosphere, yielding a variety of unsymmetrical diaryl sulfides in good to excellent yields under mild and green conditions. The new heterogeneous copper complex can easily be prepared by a simple procedure from commercially readily available and inexpensive reagents, and recovered by a simple filtration of the reaction solution and recycled for at least eight times without significant loss of catalytic activity.

An efficient protocol for the carbon-sulfur cross-coupling of sulfenyl chlorides with arylboronic acids using a palladium catalyst

Gogoi, Prasanta,Kalita, Mukul,Barman, Pranjit

, p. 866 - 870 (2014/04/03)

An efficient protocol for carbon-sulfur bond formation is developed, which involves the cross-coupling of sulfenyl chlorides and arylboronic acids catalyzed by a novel palladium-Schiff base complex. Good to high product yields, short reaction times, and mild reaction conditions are important features of this new method. Georg Thieme Verlag Stuttgart · New York.

Diazaphospholane as an efficient ligand for copper-catalyzed cross-coupling of thiols with aryl iodides

Yang, Minghua,Pei, Ji,Yan, Guobing,Zheng, Yunfa

experimental part, p. 587 - 591 (2012/05/31)

Copper-catalyzed cross-coupling of thiols with aryl iodides performed well using an air-stable diazaphospholane ligand in presence of NaOH in DMF at 110 °C and a variety of diaryl sulfides are synthesized in good yields.

Nano-CuFe2O4 as a magnetically separable and reusable catalyst for the synthesis of diaryl/aryl alkyl sulfides via cross-coupling process under ligand-free conditions

Swapna, Kokkirala,Murthy, Sabbavarapu Narayana,Jyothi, Mocharla Tarani,Nageswar, Yadavalli Venkata Durga

experimental part, p. 5989 - 5996 (2011/10/08)

An efficient protocol was developed for the CuFe2O4 nanopowder-catalyzed aryl-sulfur bond formation between aryl halide and thiol/disulfide. A variety of aryl sulfides were synthesized in impressive yields with good chemoselectivity and functional group tolerance in the presence of a catalytic amount of CuFe2O4, Cs2CO 3 as base, in nitrogen atmosphere, under ligand-free conditions, in DMSO as solvent at 100 °C. The catalyst is air-stable, inexpensive, magnetically separable and recyclable up to four cycles.

Synthesis of unsymmetrical sulfides using ethyl potassium xanthogenate and recyclable copper catalyst under ligand-free conditions

Akkilagunta, Vijay Kumar,Kakulapati, Rama Rao

, p. 6819 - 6824 (2011/10/09)

The synthesis of unsymmetrical sulfides has been achieved in good to excellent yields with inexpensive ethyl potassium xanthogenate via cross-coupling reaction using recyclable CuO nanoparticles under ligand-free conditions.The copper oxide nanoparticles can be recovered and reused up to five cycles without loss of activity.

Indium-catalyzed C-S cross-coupling of aryl halides with thiols

Reddy, V. Prakash,Swapna,Kumar, A. Vijay,Rao, K. Rama

supporting information; experimental part, p. 3189 - 3191 (2009/08/08)

Indium-catalyzed C-S cross-coupling of aromatic and alkane thiols with aryl halides proceeds smoothly in the presence of In(OTf)3 (10 mol %), TMEDA (20 mol %), and KOH as a base in DMSO at 135 °C. When this protocol was utilized, a variety of thiols could be cross-coupled with aryl halides to afford the corresponding aryl sulfides in good to excellent yields.

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