Welcome to LookChem.com Sign In|Join Free

CAS

  • or

220384-68-9

Post Buying Request

220384-68-9 Suppliers

Recommended suppliersmore

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

220384-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220384-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,8 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 220384-68:
(8*2)+(7*2)+(6*0)+(5*3)+(4*8)+(3*4)+(2*6)+(1*8)=109
109 % 10 = 9
So 220384-68-9 is a valid CAS Registry Number.

220384-68-9Relevant articles and documents

Metal-free synthesis of sulfonamides via iodine-catalyzed oxidative coupling of sulfonyl hydrazides and amines

Parumala, Santosh Kumar Reddy,Peddinti, Rama Krishna

supporting information, p. 1232 - 1235 (2016/03/01)

A novel, rapid, and environmentally-friendly protocol for the synthesis of sulfonamides using iodine as catalyst under solvent-free conditions is described. This method involves the oxidative coupling of sulfonyl hydrazides and amines in the presence of catalytic amount of iodine using TBHP as oxidant. This protocol does not require purification techniques such as column chromatography and recrystalization.

Flexible gold-catalyzed regioselective oxidative difunctionalization of unactivated alkenes

De Haro, Teresa,Nevado, Cristina

supporting information; experimental part, p. 906 - 910 (2011/03/19)

AuI/AuIII catalytic cycles can trigger three highly regioselective alkene difunctionalization processes that involve the formation of C(sp3)iO, C(sp3)iN, and C(sp3)iC(sp 2) bonds. The react

Concise synthesis of 3-arylpiperidines

Chang, Meng-Yang,Hsu, Ru-Ting,Chen, Hua-Ping,Lin, Pei-Jung

, p. 1173 - 1183 (2007/10/03)

We present an easy and straightforward synthesis of 3-arylpiperidines by Grignard addition of piperidin-3-one with different arylmagnesium bromide reagents and acidic dehydroxylation of the resulting tertiary alcohol with the combination of triethylsilane and boron trifluoride etherate. This facile strategy was further used to synthesize preclamol. A highly regioselective dehydration of 3-arylpiperidin-3-ol with boron trifluoride etherate was investigated for preparing 3-aryl-1,4,5,6-tetrahydropyridine skeleton. A novel selenium dioxide mediated dihydroperoxidation of 3-aryl-1,4,5,6-tetrahydropyridine was also examined.

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 220384-68-9