US 11,667,657 B2
Diphosphites based on cis-butene-1,4-diol
Robert Franke, Marl (DE); Detlef Selent, Rostock (DE); Armin Börner, Rostock (DE); and Anna Chiara Sale, Recklinghausen (DE)
Assigned to EVONIK OPERATIONS GMBH, Essen (DE)
Filed by EVONIK OPERATIONS GMBH, Essen (DE)
Filed on Aug. 16, 2021, as Appl. No. 17/402,905.
Claims priority of application No. 20191440 (EP), filed on Aug. 18, 2020.
Prior Publication US 2022/0056060 A1, Feb. 24, 2022
Int. Cl. C07C 45/50 (2006.01); C07F 9/6574 (2006.01); B01J 31/18 (2006.01)
CPC C07F 9/65746 (2013.01) [B01J 31/185 (2013.01); B01J 2531/004 (2013.01); B01J 2531/821 (2013.01); B01J 2531/822 (2013.01); B01J 2531/827 (2013.01); B01J 2531/845 (2013.01)] 13 Claims
 
1. A compound having structure (I) or (II):

OG Complex Work Unit Chemistry
where R1, R2, R3, R4, R5, R6, R7 and R8 are selected from: —H, —(C1-C12) alkyl or —O—(C1-C12) alkyl,
and the radicals R1, R2, R3, R4, R5, R6, R7 and R8 are not all simultaneously —tBu.