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[Pd(P(C6H5)3)2Br(CCHC(Br)C(O)OCH)] is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

637007-07-9

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637007-07-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 637007-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,0,0 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 637007-07:
(8*6)+(7*3)+(6*7)+(5*0)+(4*0)+(3*7)+(2*0)+(1*7)=139
139 % 10 = 9
So 637007-07-9 is a valid CAS Registry Number.

637007-07-9Downstream Products

637007-07-9Relevant academic research and scientific papers

Regioselectivity in the Stille Coupling Reactions of 3,5-Dibromo-2-pyrone

Kim, Won-Suk,Kim, Hyung-Jin,Cho, Cheon-Gyu

, p. 14288 - 14289 (2007/10/03)

The Stille couplings of 3,5-dibromo-2-pyrone normally take place regioselectively at C3, lower in electron density than C5, thus oxidative addition proceeds faster . When the reactions are carried out with Cu(I) in DMF or other polar aprotic solvent, however, the couplings occur predominantly at C5. The observed regiochemical reversal is attributed to the preferred formation of 5-pallado-2-pyrone intermediate which, in addition, turned out to be more reactive than 3-pallado-2-pyrone intermediate. Copyright

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