Use of 9-methylfluorene as an indicator in the titration of common group IA and group IIA organometallic reagents

Martina E. Bowen; Bhasker Reddy Aavula; Eugene A. Mash

doi:10.1021/jo0111208

Use of 9-methylfluorene as an indicator in the titration of common group IA and group IIA organometallic reagents

Martina E. Bowen, Bhasker Reddy Aavula, Eugene A. Mash

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

9-Methylfluorene was tested as an indicator in the titration of commonly used organometallic reagents. This indicator is readily prepared in three steps from fluorenone. In THF solution the deprotonated indicator is red and exhibits a sharp endpoint. The highly basic reagents secbutyllithium and tert-butyllithium can be titrated in ether solution, where the color of the deprotonated indicator is yellow.

Original language	English (US)
Pages (from-to)	9087-9088
Number of pages	2
Journal	Journal of Organic Chemistry
Volume	67
Issue number	25
DOIs	https://doi.org/10.1021/jo0111208
State	Published - Dec 13 2002

ASJC Scopus subject areas

Organic Chemistry

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abstract = "9-Methylfluorene was tested as an indicator in the titration of commonly used organometallic reagents. This indicator is readily prepared in three steps from fluorenone. In THF solution the deprotonated indicator is red and exhibits a sharp endpoint. The highly basic reagents secbutyllithium and tert-butyllithium can be titrated in ether solution, where the color of the deprotonated indicator is yellow.",

author = "Bowen, {Martina E.} and {Reddy Aavula}, Bhasker and Mash, {Eugene A.}",

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AU - Mash, Eugene A.

PY - 2002/12/13

Y1 - 2002/12/13

N2 - 9-Methylfluorene was tested as an indicator in the titration of commonly used organometallic reagents. This indicator is readily prepared in three steps from fluorenone. In THF solution the deprotonated indicator is red and exhibits a sharp endpoint. The highly basic reagents secbutyllithium and tert-butyllithium can be titrated in ether solution, where the color of the deprotonated indicator is yellow.

AB - 9-Methylfluorene was tested as an indicator in the titration of commonly used organometallic reagents. This indicator is readily prepared in three steps from fluorenone. In THF solution the deprotonated indicator is red and exhibits a sharp endpoint. The highly basic reagents secbutyllithium and tert-butyllithium can be titrated in ether solution, where the color of the deprotonated indicator is yellow.

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