	US 11,873,277 B2
	Circular economic methods for fragrance ingredients
Sunitha R. Tadepalli, Morganville, NJ (US); Paul Daniel Jones, Aberdeen, NJ (US); Geatesh K. Tampy, Colts Neck, NJ (US); and John P. Cherkauskas, Burlington, NJ (US)
Assigned to International Flavors & Fragrances Inc., New York, NY (US)
Appl. No. 17/578,515
Filed by International Flavors & Fragrances Inc., New York, NY (US)
PCT Filed Jul. 27, 2020, PCT No. PCT/US2020/043660 § 371(c)(1), (2) Date Jan. 19, 2022, PCT Pub. No. WO2021/021694, PCT Pub. Date Feb. 4, 2021.
Claims priority of provisional application 62/879,012, filed on Jul. 26, 2019.
Prior Publication US 2022/0324778 A1, Oct. 13, 2022
Int. Cl. C07C 6/12 (2006.01); C07C 5/27 (2006.01); C07C 5/41 (2006.01)

CPC C07C 6/123 (2013.01) [C07C 5/2737 (2013.01); C07C 5/41 (2013.01); C07C 2521/08 (2013.01); C07C 2529/08 (2013.01); C07C 2529/40 (2013.01)]

21 Claims

1. A process for producing a renewable aromatic backbone compound or a mixture thereof, comprising the step of contacting a renewable cymene with a suitable catalyst under flow disproportionation reaction conditions effective to convert the cymene to the renewable aromatic backbone compound selected from the group consisting of toluene, benzene, cymene isomers, xylenes and combinations thereof,

wherein the catalyst and flow disproportionation reaction conditions are selected so that the renewable cymene produces a mixture comprising renewable toluene and propylene.