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1273599-65-7

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1273599-65-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1273599-65-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,3,5,9 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1273599-65:
(9*1)+(8*2)+(7*7)+(6*3)+(5*5)+(4*9)+(3*9)+(2*6)+(1*5)=197
197 % 10 = 7
So 1273599-65-7 is a valid CAS Registry Number.

1273599-65-7Downstream Products

1273599-65-7Relevant articles and documents

Divergent Synthetic Route to Oxidized Benzofulvene Sesquiterpenoids: Protecting-Group-Free Total Synthesis of Nicotianasesterpenes A, B, and a Polygonum Sesquiterpenoid

Jeong, Myeonggyo,Lee, Hyunkee,Kim, Gibeom,Jo, Jeyun,Chang, Jae Won,Jung, Jee H.,Suh, Young-Ger,Yun, Hwayoung

, p. 6714 - 6719 (2019)

A divergent approach toward the protecting-group-free total synthesis of oxidized benzofulvene sesquiterpenoids is described. Highlight of our synthesis includes regio- and stereoselective assembly of the common intermediate 9 by the orchestrated application of a Pd(0)-catalyzed reductive dehalogenation, a solvent-free methylenation, and a vinylogous Stork enamine aldol condensation in a substrate-controlled manner. The advanced intermediate 9 was efficiently transformed to nicotianasesterpenes A, B, and a polygonum sesquiterpenoid, respectively.

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