Welcome to LookChem.com Sign In|Join Free

CAS

  • or

934562-65-9

Post Buying Request

934562-65-9 Suppliers

Recommended suppliersmore

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

934562-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 934562-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,4,5,6 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 934562-65:
(8*9)+(7*3)+(6*4)+(5*5)+(4*6)+(3*2)+(2*6)+(1*5)=189
189 % 10 = 9
So 934562-65-9 is a valid CAS Registry Number.

934562-65-9Relevant articles and documents

A new protecting group and linker for uridine ureido nitrogen

Wang, Yong,Kurosu, Michio

, p. 4797 - 4804 (2012/08/08)

(2,6-Dichloro-4-methoxyphenyl)(2,4,6-trichlorophenyl) methoxymethyl chloride [1, monomethoxydiph-enylmethoxylmethyl chloroide (MDPM-Cl)] shows a significant relative stability and 1 reacts with uridine ureido nitrogen in the presence of DBU to form the corresponding protected uridine 8 in 95% yield. The MDPM-protected uridines are stable to a wide variety of conditions utilized for the synthesis of analogs of capuramycin and muraymycins. Significantly, the MDPM protecting group can conveniently be deprotected by using 30% TFA in CH 2Cl2. In addition, polymer-bound MDPM-Cl 23 is useful for immobilization of uridine derivatives.

(2,6-Dichloro-4-alkoxyphenyl)-(2,4-dichlorophenyl)methyl trichloroacetimidates: Protection of alcohols and carboxylic acids in solution or on polymer support

Kurosu, Michio,Li, Kai

scheme or table, p. 3633 - 3641 (2010/03/05)

(2,6-Dichloro-4-methoxyphenyl)-(2,4-dichlorophenyl)-methyl trichloroacetimidate can be efficiently activated by TMSOTf (10-100 mol%) to react with alcohols and carboxylic acids. Under these conditions a wide variety of alcohols can be transformed into the corresponding ethers in excellent yields with a slight excess of the trichloroacetimidate. The resulting ethers are not susceptible to typical deprotection conditions for benzyl and 4-methoxybenzyl ether groups, however, they can be conveniently deprotected by treatment with 30-50% trifluoroacetic acid in dichloromethane. Polymer-bound (2,6-dichloro-4-alkoxyphenyl)-(2,4-dichlorophenyl)methyl trichloroacetimidate is useful for immobilization of alcohols and carboxylic acids.

Polymer-supported (2,6-dichloro-4-alkoxyphenyl)(2,4-dichlorophenyl) methanol: A new linker for solid-phase organic synthesis

Kurosu, Michio,Biswas, Kallolmay,Crick, Dean C.

, p. 1141 - 1144 (2007/10/03)

(Chemical Equation Presented) An acid and base stable hydroxytetrachlorodiphenylmethyl (HTPM) linker is developed for polymer-supported organic synthesis. The linkers reported here are utilized for loading carboxylic acids, amines, alcohols, and phenols, and are stable to Bronsted and Lewis acids, Bronsted bases, and a wide variety of nucleophiles. However, the HTPM linkers can conveniently be cleaved by the solvolytic displacement reactions with 20% TFA.

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 934562-65-9