Welcome to LookChem.com Sign In|Join Free

CAS

  • or

541508-74-1

Post Buying Request

541508-74-1 Suppliers

Recommended suppliersmore

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

541508-74-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 541508-74-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,1,5,0 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 541508-74:
(8*5)+(7*4)+(6*1)+(5*5)+(4*0)+(3*8)+(2*7)+(1*4)=141
141 % 10 = 1
So 541508-74-1 is a valid CAS Registry Number.

541508-74-1Relevant articles and documents

Stereoselective synthesis of alicyclic ketones: A hydrogen borrowing approach

Armstrong, Roly J.,Akhtar, Wasim M.,Frost, James R.,Christensen, Kirsten E.,Stevenson, Neil G.,Donohoe, Timothy J.

supporting information, (2019/11/13)

A highly diastereoselective annulation strategy for the synthesis of alicyclic ketones from diols and pentamethylacetophenone is described. This process is mediated by a commercially available iridium(III) catalyst, and provides efficient access to a wide range of cyclopentane and cyclohexane products with high levels of stereoselectivity. The origins of diastereoselectivity in the annulation reaction have been explored by a series of control experiments, which provides an explanation for how each stereocentre around the newly forged ring is controlled.

Asymmetric conjugate addition of malonate to α,β-unsaturated ketones in water using a perfluoroalkanesulfonamide organocatalyst

Kamito, Yuji,Masuda, Akira,Yuasa, Hiroki,Tada, Norihiro,Itoh, Akichika,Nakashima, Kosuke,Hirashima, Shin-Ichi,Koseki, Yuji,Miura, Tsuyoshi

, p. 974 - 979 (2014/08/18)

Perfluoroalkanesulfonamide organocatalyst 7 efficiently promotes asymmetric Michael additions of malonates to enones in cyclohexane or water to produce the corresponding addition products with excellent yields and with up to 99% ee.

Simple chiral sulfonamide primary amine catalysed highly enantioselective Michael addition of malonates to enones

Luo, Chunhua,Jin, Yu,Du, Da-Ming

experimental part, p. 4116 - 4123 (2012/06/15)

A chiral sulfonamide primary amine-organocatalysed, highly enantioselective Michael addition of malonates to enones has been developed. This reaction afforded the corresponding products in excellent yields (up to 99%) and excellent enantioselectivity (up

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 541508-74-1