Compounds containing a pentalene unit and process for their preparation

US9776984B2 · kind B2 · utility

Assignee

• ENI S.P.A. · IT

Inventors

• Gabriele Bianchi · Novara, IT
• Giuliana Schimperna · Novara, IT

Key dates

• Filing date: Jul 22, 2014
• Grant date: Oct 3, 2017
• Expiry date: Dec 13, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compound containing a pentalene unit having general formula (I) wherein R1 and R2, equal to or different from each other, are selected from: linear or branched C1-C20, preferably C2-C12, alkyl groups, saturated or unsaturated, optionally containing heteroatoms, cycloalkyl groups optionally substituted, linear or branched C1-C20, preferably C2-C12, alkoxyl groups, saturated or unsaturated, optionally substituted; or the groups R1 and R2 can be optionally bound to each other so as to form, together with the carbon atoms to which they are bound, a cycle or a polycyclic system containing from 3 to 14 carbon atoms, preferably from 4 to 6 carbon atoms, saturated, unsaturated, or aromatic, optionally containing one or more heteroatoms such as, for example, oxygen, sulfur, nitrogen, silicon, phosphorous, selenium; R3 is selected from aryl groups optionally substituted, heteroaryl groups optionally substituted; n is 0 or 1; with the proviso that: when n is 0, X represents a covalent bond and Y represents a sulfur atom (S); when n is 1, X is equal to Y, and represents a CH group, or a nitrogen atom (N). Said compound containing a pentalene unit, as such or after suitable functionalization an…