Title: Photochemical dimerization of organic compounds

Abstract

At least one of selectivity and reaction rate of photosensitized vapor phase dimerizations, including dehydrodimerizations, hydrodimerizations and cross-dimerizations of saturated and unsaturated organic compounds is improved by conducting the dimerization in the presence of hydrogen or nitrous oxide.

Inventors:

Crabtree, Robert H ^[1]; Brown, Stephen H ^[2]; Muedas, Cesar A ^[3]; Ferguson, Richard R ^[4]

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+ Show Inventor Affiliations

1. Bethany, CT
2. Princeton, NJ
3. New Haven, CT
4. Branford, CT

Issue Date:

1992-01-01

Research Org.:

Yale Univ., New Haven, CT (United States)

OSTI Identifier:

868239

Patent Number(s):

5104503

Assignee:

Yale University (New Haven, CT)

Patent Classifications (CPCs):

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

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C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS

C07D307/06 - with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C2/74 - by addition with simultaneous hydrogenation

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07B - GENERAL METHODS OF ORGANIC CHEMISTRY

C07B37/00 - Reactions without formation or introduction of functional groups containing hetero atoms, involving either the formation of a carbon-to-carbon bond between two carbon atoms not directly linked already or the disconnection of two directly linked carbon atoms

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS

C07D211/26 - with hydrocarbon radicals, substituted by nitrogen atoms

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C51/353 - by isomerisation
C07C17/281 - of only one compound
C07C19/08 - containing fluorine
C07C67/347 - by addition to unsaturated carbon-to-carbon bonds

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J19/123 - {Ultra-violet light}

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS

C07D303/22 - with monohydroxy compounds

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C29/00 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
C07C31/20 - Dihydroxylic alcohols
C07C43/10 - of polyhydroxy compounds
C07C41/30 - by increasing the number of carbon atoms, e.g. by oligomerisation
C07C49/417 - polycyclic
C07C45/72 - by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
C07C209/80 - by photochemical reactions
C07C9/16 - Branched-chain hydrocarbons
C07C49/04 - Saturated compounds containing keto groups bound to acyclic carbon atoms

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM

C07F7/083 - {Syntheses without formation of a Si-C bond}
C07F7/0801 - {General processes}

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C31/1355 - {with a six-membered ring}
C07C45/73 - combined with hydrogenation
C07C2601/14 - The ring being saturated
C07C255/04 - containing two cyano groups bound to the carbon skeleton

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DOE Contract Number:  

FG02-84ER13297

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

photochemical; dimerization; organic; compounds; selectivity; reaction; rate; photosensitized; vapor; phase; dimerizations; including; dehydrodimerizations; hydrodimerizations; cross-dimerizations; saturated; unsaturated; improved; conducting; presence; hydrogen; nitrous; oxide; photochemical dimerization; reaction rate; organic compound; organic compounds; vapor phase; nitrous oxide; unsaturated organic; /204/