118438-98-5 Usage
General Description
Phosphonic acid, (1,1-difluoro-2,3-butadienyl)-, diethyl ester, also known as 2,3-Difluoromethylidene-1,1-bis(phosphonic acid) diethyl ester, is a chemical compound with the formula C6H10F2O3P2. It is a colorless liquid that is used as an intermediate for the synthesis of pharmaceuticals and agrochemicals. Phosphonic acid, (1,1-difluoro-2,3-butadienyl)-, diethyl ester is also used as a building block for the preparation of various organic compounds. It is an important reagent in organic and medicinal chemistry due to its ability to form carbon-phosphorus bonds. Additionally, it is used as a ligand in coordination chemistry and for the synthesis of phosphonate analogs of amino acids. The compound is also utilized in the manufacture of high-performance plastics and polymers.
Check Digit Verification of cas no
The CAS Registry Mumber 118438-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,4,3 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 118438-98:
(8*1)+(7*1)+(6*8)+(5*4)+(4*3)+(3*8)+(2*9)+(1*8)=145
145 % 10 = 5
So 118438-98-5 is a valid CAS Registry Number.
118438-98-5Relevant articles and documents
Allylations of zinc Bromide as a Convenient Route to 1,1-Difluoro-3-alkenephosphonates
Burton, Donald J.,Sprague, Lee G.
, p. 613 - 617 (2007/10/02)
The reaction of zinc bromide, (EtO)2P(O)CF2ZnBr, with allylic halides was found to be catalyzed by CuBr and represents a synthetically viable and convenient route to the title phosphonates.However, the reaction could no
