Welcome to LookChem.com Sign In|Join Free

CAS

  • or

3067-56-9

Post Buying Request

3067-56-9 Suppliers

Recommended suppliersmore

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

3067-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3067-56-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,0,6 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 3067-56:
(6*3)+(5*0)+(4*6)+(3*7)+(2*5)+(1*6)=79
79 % 10 = 9
So 3067-56-9 is a valid CAS Registry Number.

3067-56-9Relevant articles and documents

Method for preparing eribulin dehydroxylation intermediate by one-pot method

-

Paragraph 0025-0026, (2021/09/08)

The invention relates to the technical field of organic synthesis, in particular to a method for preparing an eribulin dehydroxylation intermediate by a one-pot method, which comprises the following steps of in an organic solvent, taking a compound I as a raw material, carrying out oxidation-reduction reaction on the compound I, a reducing agent, a catalyst and alkali, and separating and purifying reaction liquid to obtain a compound as shown in a formula II, namely the eribulin dehydroxylation intermediate. According to the method disclosed by the invention, sulfonyl chloride, Pd/C, iodine elementary substance and pyridine which are not green and are high in price are not used, but cheap and green reagents are adopted for replacement, so that the greenness, the economical efficiency and the safety of the reaction are remarkably improved. The reaction efficiency is greatly improved and the reaction cost is reduced by shortening the reaction steps and the reaction time.

Synthesis of 1,3,4,6-Tetra-O-acetyl-l-gulose

Che, Rui,Liu, Xingui,Lu, Wei

, p. 237 - 241 (2017/03/05)

A novel, practical and concise synthesis of 1,3,4,6-tetra-O-acetyl-l-gulose is described, using d-glucuronolactone as the starting material and other inexpensive and readily available agents (22% overall yield in 9 steps). With this method, the synthesis of l-gulose and the tumor-targeting disaccharide of BLMs can be more efficient and convenient.

Attempted synthesis of the imidazylate of an α-hydroxylactone results in unexpected chlorination: Synthesis and X-ray crystal structure of 5-Chloro-5-deoxy-1,2- O -isopropylidene-β- l -idurono-6,3-lactone

Mohamed, Shifaza,Bernhardt, Paul V.,Ferro, Vito

, p. 197 - 205 (2014/06/09)

Attempted synthesis of the imidazylate derivative of 1,2-O-isopropylidene- α-D-glucurono-6,3-lactone (2) via treatment with sulfuryl chloride in the presence of excess imidazole in DMF at either -40°C or -70°C resulted in the unexpected formation of 5-chloro-5-deoxy-1,2-O-isopropylidene-β-l- idurono-6,3-lactone (7). Chloride 7 presumably forms via the rapid S N2 displacement by a chloride ion of an initially formed chlorosulfate ester intermediate, which is evidently unusually reactive. The identity of the product was confirmed by a single-crystal X-ray structure determination. Taylor & Francis Group, LLC.

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 3067-56-9