US 11,739,106 B2
Bisphosphite ligands based on benzopinacol with an open outer unit
Anna Chiara Sale, Recklinghausen (DE); Robert Franke, Marl (DE); Alexander Brächer, Haltern am See (DE); Dirk Fridag, Haltern am See (DE); Ana Markovic, Haltern am See (DE); Peter Kucmierczyk, Herne (DE); Johannes Knossalla, Gahlen (DE); Detlef Selent, Rostock (DE); Armin Börner, Rostock (DE); and Kerstin Romeike, Rostock (DE)
Assigned to EVONIK OPERATIONS GMBH, Essen (DE)
Filed by EVONIK OPERATIONS GMBH, Essen (DE)
Filed on Mar. 16, 2022, as Appl. No. 17/696,038.
Claims priority of application No. 21163482 (EP), filed on Mar. 18, 2021.
Prior Publication US 2022/0298183 A1, Sep. 22, 2022
Int. Cl. C07F 9/09 (2006.01); C07C 45/50 (2006.01)
CPC C07F 9/094 (2013.01) 13 Claims
 
1. A compound of formula (I):

OG Complex Work Unit Chemistry
wherein
R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 are each independently selected from: —H, —(C1-C12)-alkyl, —O—(C1-C12)-alkyl or —(C4-C12)-aryl, and the radicals R1, R2, R3, R4, and also the radicals R6, R7, R8, R9, R10, may form fused systems with one another.