Patent classifications
C07C29/36
Process for the synthesis of 9,9-bis(hydroxymethyl)fluorene
The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.
Process for the synthesis of 9,9-bis(hydroxymethyl)fluorene
The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.
Process for the synthesis of 9,9-bis(hydroxymethyl)fluorene
The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.
PROCESS FOR THE SYNTHESIS OF 9,9-BIS(HYDROXYMETHYL)FLUORENE
The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.
PROCESS FOR THE SYNTHESIS OF 9,9-BIS(HYDROXYMETHYL)FLUORENE
The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.
PROCESS FOR THE SYNTHESIS OF 9,9-BIS(HYDROXYMETHYL)FLUORENE
The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.
Methods and intermediates for preparing macrolactams
The present invention includes compounds useful as intermediates in the preparation of macrolactams, methods for preparing the intermediates, and methods for preparing macrolactams. One use of the methods and intermediates described herein is in the production of macrolactam compounds able to inhibit HCV NS3 protease activity. HCV NS3 inhibitory compounds have therapeutic and research applications.
Methods and intermediates for preparing macrolactams
The present invention includes compounds useful as intermediates in the preparation of macrolactams, methods for preparing the intermediates, and methods for preparing macrolactams. One use of the methods and intermediates described herein is in the production of macrolactam compounds able to inhibit HCV NS3 protease activity. HCV NS3 inhibitory compounds have therapeutic and research applications.
Synthesis and use of fluorinated compounds
The invention is directed to the preparation of fluorinated compounds and their use in organic synthesis. In particular, the invention is directed to methods of reacting compounds of structure with R.sub.fCHN.sub.2 or (CF.sub.3).sub.2CN.sub.2 to form a perfluoroalkylate or -arylated compounds, and products derived from these reactions, where X, Y.sub.B, and R.sub.f are described herein. ##STR00001##
Synthesis and use of fluorinated compounds
The invention is directed to the preparation of fluorinated compounds and their use in organic synthesis. In particular, the invention is directed to methods of reacting compounds of structure with R.sub.fCHN.sub.2 or (CF.sub.3).sub.2CN.sub.2 to form a perfluoroalkylate or -arylated compounds, and products derived from these reactions, where X, Y.sub.B, and R.sub.f are described herein. ##STR00001##