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175158-50-6

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175158-50-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 175158-50-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,1,5 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 175158-50:
(8*1)+(7*7)+(6*5)+(5*1)+(4*5)+(3*8)+(2*5)+(1*0)=146
146 % 10 = 6
So 175158-50-6 is a valid CAS Registry Number.

175158-50-6Relevant articles and documents

Prins spirocyclization for the synthesis of spiro[isobenzofuran-pyran] derivatives

Reddy, B. V. Subba,Kumar, Harish,Reddy, P. Sivaramakrishna,Singarapu, Kiran Kumar

supporting information, p. 4234 - 4238 (2014/07/21)

A Prins cascade process was developed for the synthesis of tetrahydro-3H-spiro[isobenzofuran-pyran] derivatives in good yields and selectivity by the condensation of 3-[2-(hydroxymethyl)phenyl]but-3-en-1-ols with aldehydes or ketones. The reaction proceeds smoothly in the presence of indium(III) trifluoromethanesulfonate (30 mol-%) in dichloroethane at 80 C. This is the first report on the synthesis of tetrahydro-3H-spiro[isobenzofuran- pyran] scaffolds through a Prins cascade reaction. Copyright

Efficient synthesis of polysubstituted isochromanones via a novel photochemical rearrangement

Xia, Wujiong,Shao, Yutian,Gui, Weijun,Yang, Chao

supporting information; experimental part, p. 11098 - 11100 (2011/11/06)

A novel and convenient approach to the synthesis of polysubstituted isochromanones is described. Irradiation of 2-formyl phenylalkeno-derivatives with UV light in benzene solution afforded the corresponding products in up to 98% yield. The possible reaction mechanism is proposed and further supported by the isotopic experiments.

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