Welcome to LookChem.com Sign In|Join Free

CAS

  • or

17659-27-7

Post Buying Request

17659-27-7 Suppliers

Recommended suppliersmore

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

17659-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17659-27-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,5 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 17659-27:
(7*1)+(6*7)+(5*6)+(4*5)+(3*9)+(2*2)+(1*7)=137
137 % 10 = 7
So 17659-27-7 is a valid CAS Registry Number.

17659-27-7Relevant articles and documents

Functional group transformation of α-trifluoromethylated alcohol derivatives

Hagiwara, Toshiki,Tanaka, Katsumi,Fuchikami, Takamasa

, p. 8187 - 8190 (1996)

Functional group transformation of α-trifluoromethylated alcohols was investigated. Nucleophilic substitutions of their sulfonates was achieved in the presence of metal fluoride as a base with complete inversion of the configuration.

Synthesis, characterization and catalytic performances of benzimidazolin-2-iminato actinide (IV) complexes in the Tishchenko reactions for symmetrical and unsymmetrical esters

Liu, Heng,Khononov, Maxim,Fridman, Natalia,Tamm, Matthias,Eisen, Moris S.

, p. 123 - 137 (2017/10/25)

A new family of benzimdazolin-2-iminato actinide?(IV) complexes [(Bim7-MeDipp/MeN)An(N(SiMe3)2)3] (An = U (3), Th (4)) and [(Bim4-MeDipp/MeN)An(N(SiMe3)2)3] (An = U (5), Th (6)) were synthesized and their solid state structures were established by single-crystal X-ray diffraction analysis. The catalytic performances of complexes 3–6 towards the homo- and cross-coupling of aldehydes (Tishchenko reaction) were studied and the thorium complexes 4 and 6 displayed moderate to high activities for the production of the corresponding symmetric and unsymmetrical esters. Coupling of aldehyde and alcohols, known as the tandem proton-transfer esterification, and the intermolecular coupling reaction between aldehyde and trifluoromethylketones were also investigated by these thorium complexes, indicating a complementary method to obtain unsymmetrical esters selectively. Plausible mechanisms for these reactions are proposed based on stoichiometric studies.

Microwave-assisted efficient thiolate-catalysed homo- and crossed intermolecular Tishchenko reactions

O'Connor, Cornelius J.,Manoni, Francesco,Curran, Simon P.,Connon, Stephen J.

supporting information; experimental part, p. 551 - 553 (2011/06/20)

Recently, the first efficient intermolecular crossed Tishchenko reactions were reported. The utility of these processes is curtailed by long reaction times of up to 4 days (at reflux). Herein we report that these reactions are highly susceptible to acceleration by microwave irradiation-allowing fast, efficient, high-yielding coupling to proceed in 10-180 min.

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 17659-27-7