Patent ID: 11859031
Assignee: DOW GLOBAL TECHNOLOGIES LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 3:
4. A method of synthesizing the compound of formula (1) of claim 1, the method comprising contacting a compound of formula (2), , wherein M is as defined for compound (1) and each X independently is Cl, Br, or I, with an organometallic reagent of formula X1MgR or M1Rn, wherein R is as defined for compound (1); X1 is Cl, Br, or I; M1 is Li, Zn, Sn, or Cu; and subscript n is an integer from 1 to 4 and is equal to a formal oxidation state of M1, in an aprotic solvent under effective reaction conditions, thereby synthesizing the compound of formula (1).