Welcome to LookChem.com Sign In|Join Free

CAS

  • or

34008-71-4

Post Buying Request

34008-71-4 Suppliers

Recommended suppliersmore

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

34008-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34008-71-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,0,0 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 34008-71:
(7*3)+(6*4)+(5*0)+(4*0)+(3*8)+(2*7)+(1*1)=84
84 % 10 = 4
So 34008-71-4 is a valid CAS Registry Number.

34008-71-4Relevant articles and documents

Additive-Free Isomerization of Allylic Alcohols to Ketones with a Cobalt PNP Pincer Catalyst

Spiegelberg, Brian,Dell'Acqua, Andrea,Xia, Tian,Spannenberg, Anke,Tin, Sergey,Hinze, Sandra,de Vries, Johannes G.

supporting information, p. 7820 - 7825 (2019/05/22)

Catalytic isomerization of allylic alcohols in ethanol as a green solvent was achieved by using air and moisture stable cobalt (II) complexes in the absence of any additives. Under mild conditions, the cobalt PNP pincer complex substituted with phenyl groups on the phosphorus atoms appeared to be the most active. High rates were obtained at 120 °C, even though the addition of one equivalent of base increases the speed of the reaction drastically. Although some evidence was obtained supporting a dehydrogenation–hydrogenation mechanism, it was proven that this is not the major mechanism. Instead, the cobalt hydride complex formed by dehydrogenation of ethanol is capable of double-bond isomerization through alkene insertion–elimination.

Oxa-Michael addition promoted by the aqueous sodium carbonate

Guo, Shi-Huan,Xing, Sheng-Zhu,Mao, Shuai,Gao, Ya-Ru,Chen, Wen-Liang,Wang, Yong-Qiang

supporting information, p. 6718 - 6720 (2014/12/11)

An efficient Michael addition of alcohols to activated alkenes promoted by sodium carbonate with water as reaction medium has been developed. The reaction provides a general, economical and environmentally friendly approach for the synthesis of β-alkoxycarbonyl compounds.

Platinum-catalyzed multi-step reaction of propargyl alcohols with N-heteroaromatics

Bhuvaneswari, Sivakolundu,Jeganmohan, Masilamani,Cheng, Chien-Hong

experimental part, p. 141 - 146 (2010/04/23)

N-Methyl indole reacts with but-2-yn-1-ol in the presence of PtCl 2 in MeOH giving indole derivatives having a substituted 3-oxobutyl group at the 3-position in good yield. Under the reaction conditions, various substituted indoles and substituted propargyl alcohols are successfully involved in the reaction giving the corresponding addition products in good to moderate yields. The catalytic reaction can be further extended to N-phenyl pyrrole. In the present multi-step reaction, PtCl2 likely plays dual roles: as the catalyst for the rearrangement of proparg-yl alcohols to the corresponding alken-yl ketones and as the catalyst for the addition of indoles to the alkenyl ke-tones. Experimental evidence is provided to support the proposed mechanism.

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 34008-71-4