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878381-37-4

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878381-37-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 878381-37-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,8,3,8 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 878381-37:
(8*8)+(7*7)+(6*8)+(5*3)+(4*8)+(3*1)+(2*3)+(1*7)=224
224 % 10 = 4
So 878381-37-4 is a valid CAS Registry Number.

878381-37-4Downstream Products

878381-37-4Relevant articles and documents

A Negishi cross-coupling reaction enables the total synthesis of (+)-stachyflin

Haut, Franz-Lucas,Speck, Klaus,Wildermuth, Raphael,M?ller, Kristof,Mayer, Peter,Magauer, Thomas

, p. 3348 - 3357 (2018/03/06)

We present a full account on the development of the total synthesis of the antiviral meroterpenoid (+)-stachyflin. The decalin subunit is rapidly accessed by an exo-selective Diels–Alder reaction, whereas the isonindolinone was synthesized via a highly efficient and practical de novo route starting from dimedone. A challenging sp2–sp3 Negishi cross-coupling reaction enabled construction of the crucial C15–C16 bond that connects the arene with the decalin subunit. For the final installation of the cis-decalin framework, a Lewis acid-catalyzed cyclization was applied.

Conversion of Torgov's synthesis of estrone into a highly enantioselective and efficient process

Yeung, Ying-Yeung,Chein, Rong-Jie,Corey

, p. 10346 - 10347 (2008/03/12)

A very direct and efficient conversion of the achiral Torgov diketone into the natural form of O-methyl estrone is described. Copyright

Baker's yeast mediated mono-reduction of 1,3-cyclohexanediones bearing two identical C(2) substituents

Wei, Zhi-Liang,Li, Zu-Yi,Lin, Guo-Qiang

, p. 229 - 233 (2007/10/03)

Baker's yeast mediated transformation of a series of 1,3-cyclohexanediones with two identical substituents at C(2) was investigated and the results of the biotransformation were found to depend on the size of the substituents at C(2). 1,3-Cyclohexanediones with less sterically demanding C(2) substituents could be mono-reduced to provide the corresponding ketols in good yields and excellent enantiomeric excesses.

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