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2,2-Difluoro-3-hydroxy-3,3-diphenyl-propionic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

156544-73-9

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156544-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156544-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,5,4 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156544-73:
(8*1)+(7*5)+(6*6)+(5*5)+(4*4)+(3*4)+(2*7)+(1*3)=149
149 % 10 = 9
So 156544-73-9 is a valid CAS Registry Number.

156544-73-9Downstream Products

156544-73-9Relevant academic research and scientific papers

Practically useful Reformatsky type reactions of chlorodifluoroacetate and bromodifluoroacetate induced by samarium(II) diiodide

Yoshida, Masato,Suzuki, Daiki,Iyoda, Masahiko

, p. 2523 - 2529 (1996)

Treatment of XCF2COOEt (X = Cl and Br) with SmI2 in THF gave efficiently β,β-difluorinated enolate equivalent, which was used for Reformatsky type reaction with aldehydes and ketones to give 2,2-difluoro-3-hydroxy ester.

Rhodium-catalyzed Reformatsky-type reaction of ethyl bromodifluoroacetate

Sato, Kazuyuki,Tarui, Atsushi,Kita, Tetsuya,Ishida, Yoshitaka,Tamura, Hanae,Omote, Masaaki,Ando, Akira,Kumadaki, Itsumaro

, p. 5735 - 5737 (2007/10/03)

Treatment of a variety of carbonyl compounds with ethyl bromodifluoroacetate and Et2Zn in the presence of RhCl(PPh 3)3 in CH3CN afforded Reformatsky-type products in good to excellent yields in a mild reaction c

Synthesis of 1,1-difluoroalkenes via α,α-difluoro-β-lactones

Ocampo, Rogelio,Dolbier, William R.,Paredes, Rodrigo

, p. 41 - 50 (2007/10/03)

A new method for the general synthesis of 1,1-difluoroalkenes from ketones is presented.The procedure involves initial condensation of a ketone with the difluoro Reformatsky reagent, hydrolysis to form the α,α-difluoro-β-hydroxy acids, followed by cycliza

Nucleophilic introduction of fluorinated alkyl groups into aldehydes and ketones using the corresponding alkyl halide with samarium(II) iodide

Yoshida, Masato,Suzuki, Daiki,Iyoda, Masahiko

, p. 643 - 648 (2007/10/03)

Fluorinated alkyl groups such as PhCF2, C6F13, CF3CCl2 and CF2CO2Et are nucleophilically introduced into an aldehyde or ketone using fluorinated alkyl halides with SmI2/sub

An effective synthesis of 2,2-difluoro-3-hydroxy esters

Shen, Yanchang,Qi, Ming

, p. 229 - 232 (2007/10/02)

Reformatsky reactions of bromodifluoroacetate with carbonyl compounds and its applications to the synthesis of 2,2-difluoro-3-hydroxy esters as a means of two-carbon homologation with a difluoro moiety under mild conditions in good to excellent yields are

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