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34917-41-4

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34917-41-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34917-41-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,9,1 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 34917-41:
(7*3)+(6*4)+(5*9)+(4*1)+(3*7)+(2*4)+(1*1)=124
124 % 10 = 4
So 34917-41-4 is a valid CAS Registry Number.

34917-41-4Relevant articles and documents

Visible-light-activated selective synthesis of sulfoxides via thiol-ene/oxidation reaction cascade

Singh, Manjula,Yadav, Arvind K.,Yadav, Lal Dhar S.,Singh

, p. 450 - 453 (2018/01/05)

A convenient, highly selective and metal-free synthesis of sulfoxides from alkenes and thiols using NHPI as an inexpensive and reusable organophotoredox catalyst is reported. The protocol involves radical thiol-ene/oxidation reaction cascade and utilizes visible light and air (O2) as inexpensive, readily available, non-toxic and eco-sustainable reagents to afford up to 96% yields of the product at room temperature.

Green Organocatalytic Oxidation of Sulfides to Sulfoxides and Sulfones

Voutyritsa, Errika,Triandafillidi, Ierasia,Kokotos, Christoforos G.

, p. 917 - 924 (2017/02/15)

A highly efficient synthetic methodology towards the selective synthesis of sulfoxides and sulfones is reported using a cheap and green organocatalytic method. Starting from sulfides and using 2,2,2-trifluoroacetophenone as the organocatalyst and H2O2 as the oxidant, the high-yielding preparation of sulfoxides or sulfones is described, being dependent on the reaction conditions.

Visible-light-induced selective synthesis of sulfoxides from alkenes and thiols using air as the oxidant

Cui, Huanhuan,Wei, Wei,Yang, Daoshan,Zhang, Yulong,Zhao, Huijuan,Wang, Leilei,Wang, Hua

supporting information, p. 3520 - 3524 (2017/08/15)

A highly selective synthesis of sulfoxides from alkenes and thiols was established by visible-light photoredox catalysis at room temperature. This metal-free transformation protocol, which uses inexpensive Rose Bengal as the photocatalyst and air as the green oxidant, opens a new door toward the facile and practical construction of sulfoxides.

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