Vantico Limited

Boc, Inc.

The Boc Group, Inc.

Huntsman Advanced Materials Americas LLC

Anaquest, Inc.

Ohmeda Pharmaceutical Products Division Inc.

Bor-Sheng Lin

H Kenneth Spencer

Joseph William Scheblein

Michael James Amone

Linas V Kudzma

Jerome R Bagley

Roger Tietze

Mark Bryant

Yefim Blyakhman

Dave Orser

The instant invention relates to 3,3'-bis(3,4-dihydro-3-phenyl-2H-1,3-benzoxazin-6-yl)-1(3H)-isobenzofuranone and analogues based on phenolphthalein, formaldehyde and a primary amine. Such compounds are, when cured to form polymeric networks, difficultly inflammable and resistant to high temperatures. Such compounds may especially be used in the production of printed wiring boards.

Benzoxazine compounds derivated from phenolphthalein having flame-retardant properties and a process for their preparation

The present invention relates to novel aromatic cyanate ester compounds containing at least two rings linked by a group containing an unsaturated group. The present invention further relates to compositions and prepolymers of said novel aromatic cyanate ester compounds. The present invention further relates to a process for preparing said compounds and cured articles resulting from curable mixtures thereof.

Cyanate esters having flame resistant properties

The present invention relates to compositions of matter containing aromatic cyanate ester containing at least two rings linked by a group containing an unsaturated group and selected aromatic hydroxyl compounds that exhibited improved heat release and curing properties. The present invention further relates to a process for preparing said compounds and cured articles resulting from curable mixtures thereof.

Compositions containing cyanate ester and aromatic compounds having improved heat release properties

This invention pertains to novel substituted pyrazolyl compounds useful as intravenous anesthetics represented by the Formula: ##STR1## including geometric and optically active isomeric forms, and the pharmaceutically acceptable acid addition salts thereof, wherein:

Substituted pyrazolyl compounds and methods employing such compounds

The present invention is directed to a method for preparing a 4-alkoxyalkyl-4-phenylaminopiperidine compound which comprises the steps of (a) reacting an N-substituted-4-piperidone compound with an aniline compound to form a Schiff base compound, (b) reacting the Schiff base compound with an anionic reagent having an anion stabilizing group to form an amine compound, and (c) reducing the amine compound in step (b) with a reducing agent to displace the anion stabilizing group. The anionic reagent in step (b) above has the general formula:

Method for preparing 4-alkoxyalkyl-4-phenylaminopiperdines and

Compounds are disclosed of the formula ##STR1## wherein R.sup.1 is an unsubstituted or substituted herterocyclic ring system; R.sup.2 is an unsubstituted or substituted phenyl; R.sup.3 is a lower alkyl or lower alkoxy, and L is selected from a wide variety of groups.

4-heteropentacyclic-4-(N-(phenyl)amido) piperidine derivatives and

Compounds are disclosed of the formula ##STR1## Where R.sup.1 is an unsubstituted or substituted heterocyclic ring system; R.sup.2 is an unsubstituted or substituted phenyl; R.sup.3 is a lower alkyl or lower alkoxy, and L is selected from a wide variety of groups.

Methods of preparing 4-heteropentacyclic-4-(N-phenyl)amido) piperidine

Compounds are disclosed of the formula ##STR1## where R.sup.1 is an unsubstituted or substituted heterocyclic ring system; R.sup.2 is an unsubstituted or substituted phenyl; R.sup.3 is a lower alkyl or lower alkoxy, and L is selected from a wide variety of groups.

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Berkeley Heights, NJ, United States of America

Bor-Sheng Lin