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947685-88-3

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947685-88-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 947685-88-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,7,6,8 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 947685-88:
(8*9)+(7*4)+(6*7)+(5*6)+(4*8)+(3*5)+(2*8)+(1*8)=243
243 % 10 = 3
So 947685-88-3 is a valid CAS Registry Number.

947685-88-3Downstream Products

947685-88-3Relevant articles and documents

Enantioselective [2 + 2] cycloaddition of unactivated alkenes with α-acyloxyacroleins catalyzed by chiral organoammonium salts

Ishihara, Kazuaki,Nakano, Kazuhiko

, p. 8930 - 8931 (2008/02/10)

We report the first example of an organocatalytic enantioselective [2 + 2] cycloaddition reaction of unactivated alkenes with α-acyloxyacroleins to give optically active 1-acyloxycyclobutanecarbaldehydes and subsequent ring expansion to give optically active 2-hydroxycyclopentanone derivatives. Organoammonium salt, H-L-Phe-L-Leu-N(CH2CH2)2-reduced triamine?2.6HNTf2, is a highly effective chiral catalyst for the above enantioselective [2 + 2] cycloaddition. Thus, we have developed a novel and useful formal enantioselective [2 + 3] cycloaddition through two steps. Copyright

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