Substituted dipyrromethanes and their preparation

Patent · Sun Dec 31 23:00:00 EST 1995

OSTI ID:870514

Wijesekera, Tilak ^[1]

---

1. Glen Mills, PA

New chemical compounds, bis(pyrrol-2-yl)halocarbylmethanes, also known as meso-halocarbyl dipyrromethanes, are made by recting pyrrole in either of two reaction schemes. Once such scheme converts pyrrole through an intermediate, a halocarbyl carbonyl pyrrole, to a [2-(1-hydroxyl-1-hydro-1-halocarbyl)pyrrole], and then converts the latter to the desired halocarbyldipyrromethane; the last step in this scheme is a novel and useful method in itself. The other such sequence converts pyrrole, by reaction with a halocarbyl aldehyde, directly to the desired halocarbyl dipyrromethane.

• Research Organization: Sun Refining and Marketing Co., Marcus Hook, PA (United States)
• DOE Contract Number: FC21-90MC26029
• Assignee: SunCompany, Inc. (R&M) (Philadelphia, PA)
• Patent Number(s): US 5536844
• OSTI ID: 870514
• Country of Publication: United States
• Language: English

Related Subjects

/999/
1-hydroxyl-1-hydro-1-halocarbyl
2-
aldehyde
bis
carbonyl
carbonyl pyrrole
chemical
chemical compound
chemical compounds
compounds
converts
converts pyrrole
desired
desired halocarbyl
desired halocarbyldipyrromethane
dipyrromethane
dipyrromethanes
directly
halocarbyl
halocarbyl aldehyde
halocarbyl carbonyl
halocarbyl dipyrromethane
halocarbyldipyrromethane
halocarbylmethanes
intermediate
latter
meso-halocarbyl
meso-halocarbyl dipyrromethanes
method
novel
preparation
pyrrol-2-yl
pyrrole
reaction
reaction scheme
reaction schemes
recting
recting pyrrole
scheme
scheme converts
schemes
sequence
sequence converts
step
substituted
substituted dipyrromethanes
useful
useful method