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185684-93-9

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185684-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185684-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,6,8 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 185684-93:
(8*1)+(7*8)+(6*5)+(5*6)+(4*8)+(3*4)+(2*9)+(1*3)=189
189 % 10 = 9
So 185684-93-9 is a valid CAS Registry Number.

185684-93-9Relevant academic research and scientific papers

Transition Metal Complexes in Organic Synthesis, Part 71:1 First Total Synthesis of Furoclausine-A

Kn?lker, Hans-Joachim,Krahl, Micha P.

, p. 528 - 530 (2004)

The first total synthesis of the furo[3,2-a]carbazole alkaloid furoclausine-A is described using an iron-mediated construction of the carbazole framework and an acid-catalyzed annulation of the furan ring as key steps.

Transition metals in organic synthesis, part 104. Iron-mediated total synthesis of furoclausine-A

Krahl, Micha P.,Schmidt, Arndt W.,Knoelker, Hans-Joachim

, p. 357 - 370 (2013/08/23)

Using iron-mediated coupling reactions a convergent seven-step synthesis of the furo[3,2-a]carbazole alkaloid furoclausine-A is achieved.

Transition metal complexes in organic synthesis, part 63;1 convergent iron-mediated syntheses of the furo[3,2-a]carbazole alkaloid furostifoline

Knolker,Frohner

, p. 2131 - 2136 (2007/10/03)

Two highly efficient routes to the furo[3,2-a]carbazole alkaloid furostifoline are described. Both syntheses use the iron-mediated arylamine cyclization as the key-step and lead to the natural product in seven and five steps, respectively.

Transition metal complexes in organic synthesis, Part 35. First total synthesis of furostifoline

Knoelker, Hans-Joachim,Froehner, Wolfgang

, p. 9183 - 9186 (2007/10/03)

The first total synthesis of the furo[3,2-a]carbazole alkaloid furostifoline was achieved using a convergent iron-mediated construction of the carbazole nucleus.

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