Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1246831-55-9

Post Buying Request

1246831-55-9 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

1246831-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1246831-55-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,6,8,3 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1246831-55:
(9*1)+(8*2)+(7*4)+(6*6)+(5*8)+(4*3)+(3*1)+(2*5)+(1*5)=159
159 % 10 = 9
So 1246831-55-9 is a valid CAS Registry Number.

1246831-55-9Relevant articles and documents

Regio- and stereoselective intramolecular hydroalkoxylation of aromatic alkynols: an access to dihydroisobenzofurans under transition-metal-free conditions

Yu, Shu-Yan,Gao, Li-Hong,Wu, Jing-Xin,Lan, Hong-Bing,Ma, Yi,Yin, Zhi-Gang

, p. 3303 - 3310 (2020/04/27)

An efficient, transition-metal-free method to synthesize dihydroisobenzofuran derivatives via intramolecular hydroalkoxylation of aromatic alkynols with the promotion of cesium carbonate has been developed. The reaction proceeds regioselectively with exclusive formation of 5-exo-dig product, and only Z-isomer of the new generated double bond is observed. This new protocol features with milder reaction conditions, more convenient operation and satisfactory selectivities.

Selective cyclization of alkynols and alkynylamines catalyzed by potassium tert-butoxide

Li, Deng Yuan,Shi, Ke Ji,Mao, Xiao Feng,Le Zhao, Zheng,Wu, Xin Yan,Liu, Pei Nian

, p. 7022 - 7031 (2015/03/14)

Potassium tert-butoxide (t-BuOK) was found to be an effective catalyst for the cyclization of aromatic alkynols and alkynylamines. In the presence of 10 mol % t-BuOK, a range of alkynols were converted to the corresponding exo-cyclic enol ethers as pure Z

Regioselective synthesis of phthalans via Cu(OTf)2-catalyzed 5-exo-dig intramolecular hydroalkoxylation of 2-(ethynyl)benzyl alcohols

Praveen, Chandrasekaran,Iyyappan, Chandran,Perumal, Paramasivan Thirumalai

experimental part, p. 4767 - 4771 (2010/09/20)

An efficient, regioselective Cu(OTf)2-catalyzed 5-exo-dig intramolecular hydroalkoxylation of 2-(ethynyl)benzyl alcohol, which provides a concise access to functionalized phthalan in high yields has been developed. A wide range of substrates po

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 1246831-55-9