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2-chloro-4-methoxyphenyl trifluoromethanesulfonate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1131890-86-2

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1131890-86-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1131890-86-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,1,8,9 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1131890-86:
(9*1)+(8*1)+(7*3)+(6*1)+(5*8)+(4*9)+(3*0)+(2*8)+(1*6)=142
142 % 10 = 2
So 1131890-86-2 is a valid CAS Registry Number.

1131890-86-2Relevant academic research and scientific papers

Inverting Conventional Chemoselectivity in the Sonogashira Coupling Reaction of Polyhalogenated Aryl Triflates with TMS-Arylalkynes

Wang, Miao,So, Chau Ming

supporting information, p. 681 - 685 (2022/01/20)

A newly developed phosphine ligand with a C2-cyclohexyl group on the indole ring was successfully applied in a chemoselective Sonogashira coupling reaction with excellent chemoselectivity, affording an inversion of the conventional chemoselectivity order of C–Br > C–Cl > C–OTf. This study also provided an efficient approach to the synthesis of polycyclic aromatic hydrocarbons (PAHs) and the natural product analogue trimethyl-selaginellin L by merging of chemoselective Sonogashira and Suzuki–Miyaura coupling reactions.

Multicomponent multicatalyst reactions (MC)2R: One-pot synthesis of 3,4-dihydroquinolinones

Zhang, Lei,Sonaglia, Lorenzo,Stacey, Jason,Lautens, Mark

supporting information, p. 2128 - 2131 (2013/06/05)

A Rh/Pd/Cu catalyst system led to an efficient synthesis of dihydroquinolinones in one-pot, two operations. The reaction features the first triple metal-catalyzed transformations in one reaction vessel, without any intermediate workup. The conjugate-addition/amidation/amidation reaction sequence is highly modular, divergent, and practical.

A novel approach to 3-methylindoles by a heck/cyclization/isomerization process

Baxter, Carl A.,Cleator, Ed,Alam, Mahbub,Davies, Antony J.,Goodyear, Adrian,o'Hagan, Michael

supporting information; experimental part, p. 668 - 671 (2010/04/02)

Chemical Equation presented A novel synthesis of 3-methyllndoles from chlorotrlflates through a Heck reaction, carbamate/aryl chloride coupling, and Isomerlzatlon sequence Is presented. The three-step sequence Is highly efficient and general, enabling the

PYRROLO[2,3-d]PYRIMIDIN-2-YL-AMINE DERIVATIVES AS PKC-THETA INHIBITORS

-

Page/Page column 53, (2009/11/29)

The present invention relates to a pyrrolo[2,3-d]pyrimidin-2-yl-amine derivative according to formula (I) wherein the variables are defined as in the specification, or to a pharmaceutically acceptable salt or solvate thereof. The present invention also re

Modular synthesis of indoles from imines and o-dihaloarenes or o-chlorosulfonates by a Pd-catalyzed cascade process

Barluenga, Jose,Jimenez-Aquino, Agustin,Aznar, Fernando,Valdes, Carlos

supporting information; experimental part, p. 4031 - 4041 (2009/09/04)

A detailed study of the scope of a new Pd-catalyzed synthesis of indolesfrom 1,2-dihaloarenes and o-halobenzene sulfonates and imines is descri bed. The cascade reaction comprises an imine a-arylation ollowed by an intramolecular C-N bond-forming reaction promoted by the same Pd catalyst. The reaction with 1,2-dibromobenzene shows wide scope and allows the introduction of aryl, alkyl, and vinyl substituents at different positions of the five-membered ring of the indole. The regioselective synthesis of indoles substituted in the six-membered ring can be carried out by employing o-dihalobenzene derivatives with two different halogens, taking advantage of the different reactivities of I, Br, and Cl in oxidative addition reactions. This paper also introduces a method for the efficient cleavage of the N-t-butyl group, thus allowing for the preparation of N-H indoles through the same methodology. Finally, the reaction with o-halosulfonates has been studied. The best substrates are o-chlorononaflates, which lead to indoles in very high yield. The reaction is particularlyappropriate for the synthesis of the challenging 6-substituted indoles. In view of the availability of o-chlorophenols, which are direct precur sors of the chlorononaflates, this reaction represents an efficient entry into indoles substituted in the six-membered ring. The concept is illustrated by the preparation of a 4,6-disubstituted indole from naturally occurring anethole.

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