Patent · US Active

Isomer selective synthesis of methanofullerenes

US10081591B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

NANO-C, INC. · US

Inventors

Edward A. Jackson · Franklin, US
Henning Richter · Newton, US

Key dates

Filing date	Dec 23, 2016
Grant date	Sep 25, 2018
Priority date	—
Expiry date	Dec 23, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2604/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

[6,6]-Phenyl C71 butyric acid derivatives (C70-PCBR3) having a selectivity of greater than 95 wt % of the α-isomer are provided by reacting fullerene C70 with a dialkyl sulfonium tetrafluoroborate having the formula:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.