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1,3-benzodioxol-5-yl methanesulfonate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128612-45-3

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128612-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128612-45-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,1 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128612-45:
(8*1)+(7*2)+(6*8)+(5*6)+(4*1)+(3*2)+(2*4)+(1*5)=123
123 % 10 = 3
So 128612-45-3 is a valid CAS Registry Number.

128612-45-3Relevant articles and documents

Palladium-catalyzed intra-and intermolecular C-H arylation using mesylates: Synthetic scope and mechanistic studies

Ferguson, Devin M.,Rudolph, Stacey R.,Kalyani, Dipannita

, p. 2395 - 2401 (2014/07/21)

This paper describes the development of Pd-catalyzed inter-and intramolecular direct arylation using mesylates. Furthermore, a sequential mesylation/arylation protocol using phenols as substrates is described. These transformations are general with respect to the electronics of the C-H substrates and allow for the synthesis of diverse heterocyclic motifs in good yields. Both arenes and heteroarenes efficiently participate in these reactions. Preliminary mechanistic studies are presented for both inter-and intramolecular arylations.

Cyanation of unactivated aryl chlorides and aryl mesylates catalyzed by palladium and hemilabile MOP-type ligands

Tu, Yahui,Zhang, Yi,Xu, Sheng,Zhang, Zhaoguo,Xie, Xiaomin

supporting information, p. 2938 - 2942 (2015/01/16)

Palladium-catalyzed cyanation of aryl halides and pseudo halides with potassium hexacyanoferrate is described employing the hemilabile, bulky, and electron-rich MOP-type ligands. When the mixture of t-BuOH and H2O was used as the solvent and K2CO3 as the base, the MOP-type ligands showed high efficiency for the palladium-catalyzed cyanation. The effect of ligand structure was studied in detail, and 2-di-tert-butylphosphino-2′-isopropoxy-1,1′-binaphthyl was the more effective for the cyanation. The catalyst system allows the cyanation of unactivated aryl chlorides, and even aryl mesylates to occur in good yields. Furthermore, the reactivity of different arylated reagents in the catalytic system was found to be: ArBr > ArCl >> ArOMs > ArOSO2Im > ArOSO2NMe2.

Nickel-catalyzed C-P coupling of aryl mesylates and tosylates with H(O)PR1R2

Shen, Chaoren,Yang, Guoqiang,Zhang, Wanbin

supporting information; body text, p. 3500 - 3505 (2012/05/20)

A method was developed for the nickel-catalyzed phosphonylation of aryl mesylates and tosylates with H(O)PR1R2. To the best of our knowledge, this is the first example of nickel-catalyzed C-P coupling of aryl mesylates and tosylates. Most of the substrates gave moderate to good yields under our catalytic system.

Palladium-catalyzed borylation of aryl mesylates and tosylates and their applications in one-pot sequential suzuki-miyaura biaryl synthesis

Chow, Wing Kin,So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee

supporting information; experimental part, p. 6913 - 6917 (2011/08/03)

Top of the one-pots! The first palladium-catalyzed borylation of aryl tosylates and mesylates is described. The reaction conditions are mild and provide excellent functional-group compatibility (e.g., R=CN, CHO, COOMe, C(O)R, NH2, or NH-indole; see scheme). Pd/MeO-CM-phos allows one-pot sequential reactions in the preparation of unsymmetrical biaryls. Copyright

A general palladium catalyst system for suzuki-miyaura coupling of potassium aryltrifluoroborates and aryl mesylates

Chow, Wing Kin,So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee

supporting information; experimental part, p. 5109 - 5112 (2010/09/05)

(Figure presented) The first general examples of palladium-catalyzed Suzuki-type cross-coupling of aryl and heteroaryl mesylates with potassium aryl and heteroaryltrifluoroborates are presented. In addition to biaryl couplings, the cross-coupling reactions of aryl mesylates with alkyl and vinyltrifluoroborate salts have also been successfully accomplished.

A mild and efficient palladium-catalyzed cyanation of aryl mesylates in water or tBuOH/water

Yeung, Pui Yee,So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee

supporting information; experimental part, p. 8918 - 8922 (2011/02/24)

Cool and compatible: Aryl mesylates and tosylates underwent palladium-catalyzed cyanation under mild, aqueous conditions at 65-80°C (see scheme). In many cases, water could be used as the reaction medium without a cosolvent, and a variety of substituents R, such as keto, aldehyde, ester, free amine, and nitrile groups, remained intact during the transformation. Cy=cyclohexyl, Ms=methanesulfonyl, Ts=p-toluenesulfonyl.

Palladium-indolylphosphine-catalyzed hiyama cross-coupling of aryl mesylates

So, Chau Ming,Lee, Hang Wai,Lau, Chak Po,Kwong, Fuk Yee

supporting information; experimental part, p. 317 - 320 (2009/07/04)

(Chemical Equation Presented) Aryl mesylates are found to be applicable as electrophiles in organosilicon-mediated coupling reactions. The catalyst system comprising 2 mol % of Pd(OAc)2 and CM-phos supporting ligand is highly effective in catalyzing Hiyama cross-coupling of various aryl and heteroaryl mesylates. Interesting acid additive effects show that the presence of 0.25-0.50 equiv of acetic acid efficiently suppresses the mesylate decomposition and generally promotes the coupling product yields.

A general palladium-catalyzed Suzuki-Miyaura coupling of aryl mesylates

So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee

supporting information; experimental part, p. 8059 - 8063 (2009/04/13)

(Chemical Equation Presented) Catalyze this! The first palladium-catalyzed Suzuki-Miyaura coupling of unactivated aryl mesylates is reported, with not only arylboronic acids, but also other organoboron nucleophiles (see picture; Z=B(OH)2, BF3K, BPin). The reaction conditions are compatible with various common functional groups (R1=alkyl, OMe, CHO, CO, CN, CO2R′, heteroaryl).

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