Welcome to LookChem.com Sign In|Join Free

CAS

  • or

2720-52-7

Post Buying Request

2720-52-7 Suppliers

Recommended suppliersmore

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

2720-52-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2720-52-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,2 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2720-52:
(6*2)+(5*7)+(4*2)+(3*0)+(2*5)+(1*2)=67
67 % 10 = 7
So 2720-52-7 is a valid CAS Registry Number.

2720-52-7Relevant articles and documents

Fe-Catalyzed Selective Cyclopropanation of Enynes under Photochemical or Thermal Conditions

Picher, Marie-Idrissa,Plietker, Bernd

supporting information, p. 340 - 344 (2020/01/11)

The nucleophilic Fe-complex Bu4N[Fe(CO)3(NO)] (TBA[Fe]) catalyzes the cyclopropanation of enynes to substituted propargyl cyclopropanes using diazoesters as carbene surrogates. The catalyst can be activated either thermally in the presence of catalytic amounts of 4-nitroanisole or under photochemical conditions. Cyclopropanation occurs selectively at the enyne moiety; alternative olefinic moieties remain intact.

Triple-Bond Insertion Triggers Highly Regioselective 1,4-Aminomethylamination of 1,3-Enynes with Aminals Enabled by Pd-Catalyzed C-N Bond Activation

Zhang, Yanchen,Yu, Bangkui,Gao, Binjian,Zhang, Tianze,Huang, Hanmin

supporting information, p. 535 - 539 (2019/01/24)

A highly chemo- and regioselective 1,4-aminomethylamination of simple enynes with aminals to allenic 1,5-diamines by taking advantage of C-N bond activation has been reported. The reaction proceeds under mild reaction conditions and can be performed under

Regioselective solvent-dependent benzannulation of conjugated enynes

Puenner, Florian,Hilt, Gerhard

, p. 3617 - 3619 (2012/05/20)

The transformation of enynes under cobalt-catalysis leads to symmetrical benzannulation products in dichloromethane. In tetrahydrofuran the cobalt-catalysed reactions afforded the unprecedented unsymmetrical benzannulation products in moderate to good yields and good regioselectivities. In addition, cyclotrimerisation of the alkyne subunit can be realised when electron-deficient enynes are applied in the cobalt-catalysed transformations to generate 1,2,4-trivinylbenzene derivatives using tetrahydrofuran as solvent.

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 2720-52-7