Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1273578-50-9

Post Buying Request

1273578-50-9 Suppliers

Recommended suppliersmore

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

1273578-50-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1273578-50-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,3,5,7 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1273578-50:
(9*1)+(8*2)+(7*7)+(6*3)+(5*5)+(4*7)+(3*8)+(2*5)+(1*0)=179
179 % 10 = 9
So 1273578-50-9 is a valid CAS Registry Number.

1273578-50-9Relevant articles and documents

One-pot, two-step synthesis of 7-methylene-1,5-piperazine-fused 1,2,3-triazoles

Kuang, Lu,Ming, Peng,Wan, Chang-Feng,Chen, Jun-Min,Sheng, Shou-Ri

, p. 563 - 569 (2020/11/19)

A facile, one-pot two-step synthesis of 7-methylene-1,5-piperazine-fused 1,2,3-triazole derivatives has been developed. The protocol employs an N-allylation of N-propargylated amines with 2,3-dibromopropene in the presence of K2CO3 in DMSO and a CuI-catalyzed [3 + 2] cycloaddition reaction of the synthetic N-(2-bromoallyl)-N-propargyl amines with sodium azide sequentially. Such a method provides methylene-substituted 1,2,3-triazole fused piperazines with some advantages such as simple operation, high efficiency and good product yield (80–91%) through readily available starting materials.

A synthetic in alkyne endalkyne propylamine derivatives containing different substituents method of (by machine translation)

-

Paragraph 0027, (2016/11/07)

The invention belongs to the field of organic synthesis technology, in particular to a kind of synthetic in alkyne endalkyne propylamine derivatives containing different substituents method. This invention, through a carbon-carbon single bond of activation between alkyne propylamine the mutual conversion of different, the rare-earth catalyst system, terminal alkyne as compounds with propargyl substituted secondary amine as raw material, the preparation containing various substituents alkyne endalkyne propylamine derivatives. The method of the invention the raw material sources are widespread or easy to prepare, simple and convenient operation, selectively controllable, high yield. (by machine translation)

Platinum-catalyzed cyclization reaction of alkynes: Synthesis of azepino[3,4-b]indol-1-ones

Gruit, Marina,Pews-Davtyan, Anahit,Beller, Matthias

experimental part, p. 1148 - 1159 (2011/04/15)

Novel azepino[3,4-b]indol-1-ones were synthesized from alkyne-substituted indole-2-carboxamides by catalytic intramolecular cyclization in the presence of PtCl2. The scope and limitations of this straightforward protocol are reported.

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 1273578-50-9