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27846-24-8

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27846-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27846-24-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,8,4 and 6 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 27846-24:
(7*2)+(6*7)+(5*8)+(4*4)+(3*6)+(2*2)+(1*4)=138
138 % 10 = 8
So 27846-24-8 is a valid CAS Registry Number.

27846-24-8Relevant articles and documents

Efficient visible light initiated hydrothiolations of alkenes/alkynes over Ir2S3/ZnIn2S4: Role of Ir2S3

Li, Yuanyuan,Li, Zhaohui,Wang, Xinglin

, p. 409 - 416 (2021)

The hydrothiolations of alkynes/alkenes with thiols is an atom-economic and thus attractive method for the constructions of C-S bonds. Here Ir2S3/ZnIn2S4 nanocomposites with varied Ir2S3 loadings were obtained by one-pot solvothermal method from ZnCl2, InCl3 and thioacetamide with IrCl3. The loading of Ir2S3 on the surface of ZnIn2S4 promoted the hydrothiolations of alkenes and alkynes, with an optimum performance observed over 0.5 molpercent Ir2S3/ZnIn2S4 nanocomposite. Based on the studies on the performance of several other cocatalysts (MoS2, NiS and Pd) loaded ZnIn2S4 and the EIS analyses, it was proposed that the superior performance over Ir2S3/ZnIn2S4 nanocomposite can be ascribed to an improved efficiency on the photogeneration of the thiyl radicals by loading Ir2S3 as well as its inactivity for photocatalytic hydrogen evolution, a side reaction in the light initiated hydrothiolation reaction over ZnIn2S4. This study not only demonstrates an efficient and green strategy to synthesize thiolated products under visible light based on semiconductor photocatalysis, but also provides some guidances for the design and development of photocatalytic systems for light induced organic syntheses.

Synthesis of sulfides via reaction of aryl/alkyl halides with S8 as a sulfur-transfer reagent catalyzed by Fe3O4-magnetic-nanoparticles-supported L-Histidine-Ni(II)

Azadi, Gouhar,Taherinia, Zahra,Naghipour, Ali,Ghorbani-Choghamarani, Arash

, p. 303 - 313 (2017/05/04)

One-pot synthesis of symmetrical diaryl/alkyl sulfides in high yields from the reaction between aryl/alkyl halides and S8 can be carried out in a short period, using Fe3O4@SiO2@His@Ni(II) as a reusable catalyst. The present approach offers the advantages of a clean reaction, simple methodology and high efficiency, and avoids the use of a toxic catalyst.

Hydrothiolation of Alkenes and Alkynes Catalyzed by 3,4-Dimethyl-5-vinylthiazolium iodide and Poly(3,4-dimethyl-5-vinylthiazolium) iodide

Chun, Supill,Chung, Junyong,Park, Ji Eun,Chung, Young Keun

, p. 2476 - 2481 (2016/08/24)

The highly selective anti-Markovnikov addition of thiols to unactivated alkenes and alkynes was demonstrated by using 3,4-dimethyl-5-vinylthiazolium iodide or its polymer, poly(3,4-dimethyl-5-vinylthiazolium) iodide, as a complementary catalyst. The reaction proceeded cleanly under base-free conditions in air with both aromatic and aliphatic thiols. The polymer catalyst showed a high turnover number (≈5800) and could be reused up to four times without any loss of catalytic activity. DFT calculations supported stabilization of the thiyl radical intermediate by the thiazolium cation, which resulted in reaction of the radical with unsaturated C?C bonds.

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