Welcome to LookChem.com Sign In|Join Free

CAS

  • or

41959-24-4

Post Buying Request

41959-24-4 Suppliers

Recommended suppliersmore

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

41959-24-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 41959-24-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,9,5 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 41959-24:
(7*4)+(6*1)+(5*9)+(4*5)+(3*9)+(2*2)+(1*4)=134
134 % 10 = 4
So 41959-24-4 is a valid CAS Registry Number.

41959-24-4Relevant articles and documents

Synthesis of tetraarylmethanes via a Friedel-Crafts cyclization/desulfurization strategy

Griffin, Paul J.,Fava, Matthew A.,Whittaker, St. John T.,Kolonko, Kristopher J.,Catino, Arthur J.

, p. 3999 - 4002 (2018)

Tetraarylmethanes are an important class of molecules that contain four aryl groups bonded to a central carbon atom. The shape/three-dimensionality of these molecules makes them suitable for organic light-emitting diodes (OLEDs), organic solar cells, hydrogen storage, and even drug-delivery. Despite their importance, there are only a few methods available for their preparation. Herein, we report a simple procedure for the preparation of tetraarylmethanes that involves a bismuth-catalyzed Friedel-Crafts cyclization followed by a desulfurization reaction mediated by Raney nickel.

Syntheses and Reactions of 9-Substituted 10-Phenylthioxanthenium Salts: Negative Evidence for Thia-anthracene Oligomerisation

Hori, Mikio,Kataoka, Tadashi,Shimizu, Hiroshi,Ikemori, Megumi,Aoyama, Yasuko

, p. 1209 - 1218 (2007/10/02)

Various 9-aryl-10-phenylthioxanthenium salts have been prepared and their stereochemistry determined by (1)H n.m.r. spectroscopy.Reactions of the 10-phenylthioxanthenium salts or 10-phenyl-10-thia-anthracenes with aryl-lithiums have been studied in order to investigate whether or not 10-thia-antracenes cause oligomerisation.The 10-phenylthioxanthenium salts reacted with aryl-lithiums to give 9-phenylthioxanthenes in good yields.However, 10-phenylthioxanthenium salt (19) when treated with phenyl-lithium at -15 to -20 deg C gave 9-phenylthioxanthenol (38) (17percent) together with 9-phenylthioxanthene (13) because of the lability of 10-phenyl-10-thia-anthracene to air. 10-Phenyl-9-(p-tolyl)-10-thia-anthracene (50) generated in situ from the sulphonium salt (22) and lithium diisopropylamide failed to react with p-tolyl-lithium.An isolable ylide, 9-benzoyl-10-phenyl-10-thia-anthracene (52) was treated with p-tolyl-lithium at 0 deg C to give 9-benzoylthioxanthene (4) (82percent).In contrast, 9,9,10-triphenylthioxanthenium salt (24) on treatment with phenyl-lithium gave a ring-opened product (40), a ring-contracted product (41), diphenylsulphide (42), and 9,9-diphenylthioxanthene (12).These results indicate that the 10-phenyl-thia-anthracenes or the ?-sulphuranes of thioxanthenes do not cause oligomerisation.

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 41959-24-4