US 11,685,752 B2
Process for preparing organotin compounds
David M. Ermert, Danbury, CT (US); Thomas H. Baum, New Fairfield, CT (US); and Thomas M. Cameron, Newtown, CT (US)
Assigned to ENTEGRIS, INC., Billerica, MA (US)
Filed by ENTEGRIS, INC., Billerica, MA (US)
Filed on Jan. 28, 2022, as Appl. No. 17/586,834.
Claims priority of provisional application 63/142,849, filed on Jan. 28, 2021.
Prior Publication US 2022/0242889 A1, Aug. 4, 2022
Int. Cl. C07F 7/22 (2006.01)
CPC C07F 7/2284 (2013.01) [C07F 7/2296 (2013.01)] 13 Claims
 
1. A process for preparing a compound of the Formula (I):

OG Complex Work Unit Chemistry
wherein each R is independently chosen from C1-C5 alkyl groups, each R1 is independently chosen from C1-C5 alkyl groups, and R2 is chosen from a vinyl group or an acetylenyl group, wherein the process comprises:
contacting a compound of the Formula (A)

OG Complex Work Unit Chemistry
with a compound of the Formula L-R2, wherein L is leaving group, and M is chosen from sodium, lithium, or potassium.