Welcome to LookChem.com Sign In|Join Free

CAS

  • or

121617-88-7

Post Buying Request

121617-88-7 Suppliers

Recommended suppliersmore

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

121617-88-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121617-88-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,1 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 121617-88:
(8*1)+(7*2)+(6*1)+(5*6)+(4*1)+(3*7)+(2*8)+(1*8)=107
107 % 10 = 7
So 121617-88-7 is a valid CAS Registry Number.

121617-88-7Relevant articles and documents

Palladium-catalyzed domino coupling reactions of aryl halides with norbornene and norbornene derivatives - A simple route to polycyclic aromatic compounds

Albrecht, Karsten,Reiser, Oliver,Weber, Martin,Knieriem, Burkhard,De Meijere, Armin

, p. 383 - 401 (2007/10/02)

Under palladium-catalysis, norbornene 1, dicyclopentadiene 10, norbornenol 13, and norbornenone 15 react with unsubstituted as well as substituted bromo- and iodobenzenes to give 1 : 3 coupling products with 4-aryl-9,10-dihydrophenanthrene units with up to 70% isolated yields. The structures of two such products 4a and 4e were proved by X-ray crystal structure analysis. 2-Bromothiophene 17 reacts with 1 and 10 to yield a mixture of 2 : 1 and 3 : 1 coupling products, while 3-iodopyridine 22a, 3-iodo-6-methylpyridine 22b and 4-iodopyridine 25 give only 2 : 1 coupling products with 5,6-dihydro-3,8-phenanthroline and 5,6-dihydro-2,9-phenanthroline units, respectively. Some new mechanistic insights into this interesting four-component domino coupling reaction are presented. The products can easily be transformed by photocyclization/dehydrogenation and/or flash vacuum pyrolysis to a variety of cyclopentadiene-anellated polycyclic aromatic compounds in very high yields. The reported sequence also presents the easiest access to benzo[e]pyrene.

Selektive 1:3-Kupplung von Norbornen und Iodbenzol; einfache Synthese Cycloaliphaten-anellierter Benzopyrene

Reiser, Oliver,Weber, Martin,Meijere, Armin

, p. 1071 - 1072 (2007/10/02)

-

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 121617-88-7