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497144-17-9

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497144-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 497144-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,1,4 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 497144-17:
(8*4)+(7*9)+(6*7)+(5*1)+(4*4)+(3*4)+(2*1)+(1*7)=179
179 % 10 = 9
So 497144-17-9 is a valid CAS Registry Number.

497144-17-9Relevant articles and documents

Concise Synthesis of the Tricyclic Core of Salimabromide

Schmalzbauer, Bj?rn,Menche, Dirk

, p. 2956 - 2959 (2015)

A concise synthesis of the tricyclic core 2 of the structurally unique marine myxobacterial natural product salimabromide has been developed. Compound 2 contains the tetraline subunit including the two quaternary centers and the eight-membered ring of sal

Synthesis of racemic Δ3-2-hydroxybakuchiol and its analogues

Shi, Lei,Lei, Xinsheng,Zhang, Jiange,Lin, Guoqiang

experimental part, p. 555 - 564 (2010/06/14)

The first synthetic approach to (±)-Δ3-2- hydroxybakuchiol (=4-[(1E,5E)-3-ethenyl-7-hydroxy-3,7-dimethylocta-1,5-dien-1- yl]phenol; 14) and its analogues 13a - 13f was developed by 12 steps (Schemes 2 and 3). The key features of the approach are the construction of the quaternary C-center bearing the ethenyl group by a Johnson - Claisen rearrangement (→6); and of an (E)-alkenyl iodide via a Takai - Utimoto reaction (→11); and an arylation via a Negishi cross-coupling reaction (→12e - 12f).

Asymmetric total synthesis of martinelline and martinellic acid

Ikeda, Shuhei,Shibuya, Masatoshi,Iwabuchi, Yoshiharu

, p. 504 - 506 (2007/10/03)

Herein, we describe the first asymmetric total synthesis of (-)-martinelline ((-)-2) and the second total synthesis of (-)-martinellic acid ((-)-1) by employing a tandem Mukaiyama-Mannich reaction/aminal cyclization as the key step. The Royal Society of C

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