Alkylation

Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

585731, C07C 266

Patent

active

048854255

ABSTRACT:
Compositions containing sulfuric acid and one or more of certain chalcogen-containing compounds in which the chalcogen compound/H.sub.2 SO.sub.4 molar ratio is below 2 contain the mono-adduct of sulfuric acid which is catalytically active for promoting organic chemical reactions. Suitable chalcogen-containing compounds have the empirical formula ##STR1## wherein X is a chalcogen, each of R.sub.1 and R.sub.2 is independently selected from hydrogen, HR.sub.3 R.sub.4, and NR.sub.5, at least one of R.sub.1 and R.sub.2 is other than hydrogen, each of R.sub.3 and R.sub.4 is hydrogen or a monovalent organic radical, and R.sub.5 is a divalent organic radical. Such compositions are useful for catalyzing organic reactions such as oxidation, oxidative addition, reduction, reductive addition, esterification, transesterification, hydrogenation, isomerication (including racemization of optical isomers), alkylation, polymerization, demetallization of organometallics, nitration, Friedel-Crafts reactions, and hydrolysis. Novel catalysts are disclosed which involve combinations of the chalcogen compound-sulfuric compositions with one or more transition metal halides and/or with one or more surfactants.

REFERENCES:
patent: Re1995 (1865-06-01), Hoffman
patent: 1340708 (1920-05-01), Fjellanger
patent: 1678852 (1932-09-01), Hoppler
patent: 1917539 (1933-07-01), Miles
patent: 1919623 (1933-07-01), Dreyfus
patent: 2276251 (1940-02-01), Morrell
patent: 2767108 (1956-10-01), Fetzer
patent: 2978359 (1961-04-01), Wedell
patent: 3432482 (1969-03-01), Ohfuka et al.
patent: 3558530 (1971-01-01), Schroder et al.
patent: 3660070 (1972-05-01), Maruta et al.
patent: 3778431 (1973-12-01), Knightlinger
patent: 3816375 (1978-06-01), Bozer et al.
patent: 3873734 (1975-03-01), Higgins et al.
patent: 3878304 (1975-04-01), Moore
patent: 3916952 (1975-11-01), Neumiller
patent: 4116664 (1978-09-01), Jones
patent: 4214888 (1980-07-01), Young
patent: 4310343 (1982-01-01), Verdegaal et al.
patent: 4315763 (1982-02-01), Stoller et al.
patent: 4397675 (1983-08-01), Young
patent: 4402852 (1983-09-01), Young
patent: 4404116 (1983-09-01), Young
patent: 4439348 (1984-03-01), Akerberg
patent: 4445925 (1984-05-01), Young
patent: 4447253 (1984-05-01), Young
patent: 4451577 (1984-05-01), Coss
patent: 4474925 (1984-10-01), Sartoretto et al.
patent: 4512813 (1985-04-01), Young
patent: 4522644 (1985-06-01), Young
patent: 4589925 (1986-05-01), Young
patent: 4626417 (1986-12-01), Young
patent: 4664717 (1987-05-01), Young
patent: 4673522 (1987-06-01), Young
patent: 4686017 (1987-08-01), Young
patent: 4722986 (1988-02-01), Young
patent: 4743669 (1988-05-01), Young
patent: 4755265 (1988-07-01), Young
patent: 4801511 (1989-01-01), Young
patent: 4818269 (1989-04-01), Young
patent: 4831056 (1989-05-01), Young
patent: 4834788 (1989-05-01), Young

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Alkylation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alkylation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkylation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2035738

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.