Welcome to LookChem.com Sign In|Join Free

CAS

  • or

21713-54-2

Post Buying Request

21713-54-2 Suppliers

Recommended suppliersmore

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

21713-54-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21713-54-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,1 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21713-54:
(7*2)+(6*1)+(5*7)+(4*1)+(3*3)+(2*5)+(1*4)=82
82 % 10 = 2
So 21713-54-2 is a valid CAS Registry Number.

21713-54-2Downstream Products

21713-54-2Relevant articles and documents

Electrochemical Enabled Cascade Phosphorylation of N?H/O?H/S?H Bonds with P?H Compounds: An Efficient Access to P(O)-X Bonds

Abdukader, Ablimit,Dong, Xiaojuan,Jin, Weiwei,Liu, Chenjiang,Wang, Bin,Wang, Ruige,Xia, Yu,Xue, Fei,Zhang, Yonghong

supporting information, p. 14931 - 14935 (2021/10/06)

An electrochemical three component cascade phosphorylation reaction of various heteroatoms-containing nucleophiles including carbazoles, indoles, phenols, alcohols, and thiols with Ph2PH has been established. Electricity is used as the “traceless” oxidant and water and air are utilized as the “green” oxygen source. All kinds of structurally diverse organophosphorus compounds with P(O)-N/P(O)-O/P(O)-S bonds are assembled in moderate to excellent yields (three categories of phosphorylation products, 50 examples, up to 97 % yield). A tentative free radical course is put forward to rationalize the reaction procedure.

Base-promoted selective O-phosphorylation of aryl triflates with P(O)-H compounds

Wang, Mingyue,Yang, Jia,Wang, Shuai,Zhong, Hong

, (2020/05/05)

Compared to previous transition metal-catalyzed C-phosphorylation reactions for constructing C–P bonds, in the absence of transition metal catalysts and ligands, a direct O-phosphorylation of aryl triflates selectively occurred with P(O)-H compounds in the presence of a base via the construction of O–P bonds. This transformation proceeds under simple and mild conditions, and provides a new method for the preparation of valuable organophosphoryl compounds from readily available P(O)-H compounds and triflates.

Preparation method of compound containing P-O bond or P-S bond

-

Paragraph 0312-0316, (2020/09/12)

The invention discloses a preparation method of a compound containing a P-O bond or a P-S bond. The method comprises the following steps: a compound containing hydroxyl or sulfydryl and a phosphorus reagent are taken as initial raw materials; then, the initial raw materials are put into an inert gas atmosphere; and under the action of trifluoromethanesulfonic anhydride (Tf2O) and dimethyl sulfoxide (DMSO), the compound containing hydroxyl or sulfydryl, the phosphorus reagent, the trifluoromethanesulfonic anhydride and the dimethyl sulfoxide in a molar ratio of (1-5): (1-2.5): (2-3): 2 react inan organic solvent at the reaction temperature of 25-100 DEG C for 6-20 hours to obtain the compound with the structural general formula (I). The reagents used in the method are low in toxicity and environmentally friendly, and use of precious metal catalysts high in price and toxicity is avoided. The reagents trifluoromethanesulfonic anhydride (Tf2O) and dimethyl sulfoxide (DMSO) used in the method are low in toxicity and very low in cost, so that the method is green, environment-friendly, high in economy and suitable for large-scale production.

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 21713-54-2