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40730-42-5

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40730-42-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40730-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,3 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40730-42:
(7*4)+(6*0)+(5*7)+(4*3)+(3*0)+(2*4)+(1*2)=85
85 % 10 = 5
So 40730-42-5 is a valid CAS Registry Number.

40730-42-5Downstream Products

40730-42-5Relevant articles and documents

Chan-Lam-Type C-S Coupling Reaction by Sodium Aryl Sulfinates and Organoboron Compounds

Lam, Long Yin,Ma, Cong

supporting information, p. 6164 - 6168 (2021/08/16)

A Chan-Lam-Type C-S coupling reaction using sodium aryl sulfinates has been developed to provide diaryl thioethers in up to 92% yields in the presence of a copper catalyst and potassium sulfite. Both electron-rich and electron-poor sodium aryl sulfinates and diverse organoboron compounds were tolerated for the synthesis of aryl and heteroaryl thioethers and dithioethers. The mechanistic study suggested that potassium sulfite was involved in the deoxygenation of sulfinate through a radical process.

A survey of sulfide ligands for allylic C-H oxidations of terminal olefins

Le, Chichip Q.,Kunchithapatham, Kamala,Henderson, William H.,Check, Christopher T.,Stambuli, James P.

supporting information, p. 11153 - 11157 (2013/09/02)

Perfect to a THT! Screening a diverse library of thioether ligands led to the discovery of tetrahydrothiophene (THT) as a highly reactive and selective ligand for Pd-catalyzed allylic C-H oxidation reactions (see scheme). This novel ligand system provides some of the highest reported yields for the formation of (E)-linear allylic acetates through allylic C-H activation chemistry (BQ = 1,4-benzoquinone). Copyright

CATALYSTS FOR ARYL SULFIDE SYNTHESIS AND METHOD OF PRODUCING ARYL SULFIDES

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Page/Page column 27; 46, (2008/06/13)

The present invention relates to the formation of aryl sulfides and aryl thiols from aryl halides and thiols, thiolates or thiolate equivalents. The present invention provides a catalyst for the coupling of aryl halides with alkyl or aryl thiols or a hydrogen sulfide equivalent to form aryl alkyl, aryl silyl or diaryl sulfides. The reaction encompasses bromoarenes and other similar compounds containing leaving groups as well as nitrile, ester, keto, free hydroxyl, free amino, free carboxylic acid and other common functionalities. The invention can be used to prepare pharmaceutical compounds, especially including their intermediates, agricultural agents and aryl sulfide polymers.

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