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1203675-75-5

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1203675-75-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1203675-75-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,3,6,7 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1203675-75:
(9*1)+(8*2)+(7*0)+(6*3)+(5*6)+(4*7)+(3*5)+(2*7)+(1*5)=135
135 % 10 = 5
So 1203675-75-5 is a valid CAS Registry Number.

1203675-75-5Upstream product

1203675-75-5Downstream Products

1203675-75-5Relevant academic research and scientific papers

Sulfur-assisted five-cascade sequential reactions for the convenient and efficient synthesis of allyl thiophen-2-yl acetates, propionates and ketones

Zhou, Hongwei,Xie, Yongfa,Ren, Lianjun,Su, Rui

supporting information; experimental part, p. 356 - 359 (2010/03/24)

(Figure presented) A sulfur-assisted five-cascade sequential reaction, wherein the In situ-generated allenyl allyl sulfides undergo thio-Claisen rearrangement, intramolecular Michael addition, and 1,5-proton migratlon/aromatlzation to obtain allyl thlophen-2-yl acetates, propionates, and ketones as the final products, was reported. As a result of the ready availability of starting materials and the extremely simple and convenient operation, this type of reaction presented here has potential utility In organic synthesis. Application of this efficient method for the synthesis of potentially pharmaceutical compounds also might be useful for the pharmacists.

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