Welcome to LookChem.com Sign In|Join Free

CAS

  • or

68157-27-7

Post Buying Request

68157-27-7 Suppliers

Recommended suppliersmore

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

68157-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68157-27-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,1,5 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 68157-27:
(7*6)+(6*8)+(5*1)+(4*5)+(3*7)+(2*2)+(1*7)=147
147 % 10 = 7
So 68157-27-7 is a valid CAS Registry Number.

68157-27-7Relevant articles and documents

ELECTRON-TRANSFER INDUCED CONVERSION OF ENOL-ETHERS INTO KETONES

Lopez, Luigi,Troisi, Luigino

, p. 489 - 492 (1989)

Alkoxy (aryl)-methylidene adamantanes react with catalytic amounts of tris p-bromophenylammoniumyl hexachloroantimonate in CH2Cl2 under argon atmosphere, yielding adamantyl-arylketones together with the corresponding alcohols.The reaction most likely proc

Adamantylzinc bromides: Direct preparation and application to cross-coupling reaction

Hwang, Hyung-Seo,Joo, Seong-Ryu,Kim, Seung-Hoi

, p. 2769 - 2772 (2015/11/16)

-

Enhanced enantio- and diastereoselectivity via confinement and cation binding: Yang photocyclization of 2-benzoyladamantane derivatives within zeolites

Natarajan, Arunkumar,Joy, Abraham,Kaanumalle, Lakshmi S.,Scheffer, John R.,Ramamurthy

, p. 8339 - 8350 (2007/10/03)

Irradiation of 2-benzoyladamantane derivatives in zeolites yields the endo-cyclobutanols as the only photoproduct via a γ-hydrogen abstraction process. The cyclobutanols readily undergo retroaldol reaction to give δ-ketoesters. The enantiomeric excess (ee) in the endo-cyclobutanols is measured by monitoring the ee in the ketoesters. Whereas in solution the ee in the product ketoester is zero, within achiral NaY zeolite, in the presence of a chiral inductor such as pseudoephedrine, ee's up to 28% have been obtained. The influence of zeolite on several chiral esters of 2-benzoyladamantane-2-carboxylic acids has also been examined. Whereas in solution the diastereomeric excess is 15%, in zeolite the δ-ketoesters are obtained in 79% de (best examples). Ab initio computations suggest that enhancement of chiral induction within zeolites is likely to be due to cation complexation with the reactant ketone. Alkali ion-organic interaction, a powerful tool, is waiting to be fully exploited in photochemical and thermal reactions. In this context zeolites could be a useful medium as one could view them as a reservoir of "naked" alkali ions that are only partially coordinated to the zeolite walls.

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 68157-27-7