Works (14)

Updated: July 5th, 2023 16:02

2005 patent

Methods of making porphyrins and related compounds with Lewis acids

Washington, DC: U.S. Patent and Trademark Office.

Lianhe Yu; G. Richard Geier; Jonathan Lindsey

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Effects of aldehyde or dipyrromethane substituents on the reaction course leading to meso-substituted porphyrins

TETRAHEDRON, 60(50), 11435–11444.

By: G. Geier n & J. Lindsey n

author keywords: porphyrin; porphyrinogen; dipyrromethane; polypyrromethane; pyrrole; laser desorption mass spectrometry
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2002 journal article

Acidolysis of intermediates used in the preparation of core-modified porphyrinic macrocycles

JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 6(3), 186–197.

By: F. Chevalier n, G. Geier* & J. Lindsey n

author keywords: dipyrromethane; core-modified porphyrin; acid catalysis; oxaporphyrin; thiaporphyrin; selenaporphyrin
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2002 journal article

Effects of diverse acid catalysts on the reaction course in the two-step one-flask synthesis of meso-tetraphenylporphyrin

JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 6(3), 159–185.

By: G. Geier n & J. Lindsey n

author keywords: porphyrin; tetraphenylporphyrin; acid catalysis; Bronsted acid; Lewis acid; N-confused tetraphenylporphyrin; tetraphenylsapphyrin; pyrromethane; mass spectrometry
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 journal article

A survey of acid catalysts in dipyrromethanecarbinol condensations leading to meso-substituted porphyrins

JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 5(12), 810–823.

By: G. Geier n, J. Callinan n, P. Rao n & J. Lindsey n

author keywords: dipyrromethane; porphyrin; acid catalysis; pyridyl; lanthanide; laser desorption mass spectrometry (LD-MS)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 journal article

Investigation of acid cocatalysis in syntheses of tetra-phenylporphyrin

JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 5(9), 681–690.

By: G. Geier*, J. Riggs & J. Lindsey*

author keywords: acid catalysis; cocatalysis; porphyrin; pyrrole; aldehyde
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 journal article

Investigation of porphyrin-forming reactions. Part 1. Pyrrole plus aldehyde oligomerization in two-step, one-flask syntheses of meso-substituted porphyrins

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, (5), 677–686.

By: G. Geier n & J. Lindsey n

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 journal article

Investigation of porphyrin-forming reactions. Part 2. Examination of the reaction course in two-step, one-flask syntheses of meso-substituted porphyrins

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, (5), 687–700.

By: G. Geier n & J. Lindsey n

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 journal article

Investigation of porphyrin-forming reactions. Part 3. The origin of scrambling in dipyrromethane plus aldehyde condensations yielding trans-A(2)B(2)-tetraarylporphyrins

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, (5), 701–711.

By: G. Geier n, B. Littler n & J. Lindsey n

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 journal article

Investigation of porphyrin-forming reactions. Part 4. Examination of the reaction course in syntheses of porphyrins via dipyrromethanecarbinols

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, (5), 712–718.

By: G. Geier n, B. Littler n & J. Lindsey n

UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2000 journal article

A survey of acid catalysts for use in two-step, one-flask syntheses of meso-substituted porphyrinic macrocycles

ORGANIC LETTERS, 2(12), 1745–1748.

By: G. Geier n, Y. Ciringh n, F. Li n, D. Haynes n & J. Lindsey n

MeSH headings : Acids, Noncarboxylic / chemistry; Aldehydes / chemistry; Catalysis; Porphyrins / chemical synthesis; Pyrroles / chemistry
TL;DR: The scope of acid catalysis was found to be very broad, with 35 of 45 acids providing TPP in yields ranging from 5% to 58%. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2000 journal article

Efficient synthesis of monoacyl dipyrromethanes and their use in the preparation of sterically unhindered trans-porphyrins

JOURNAL OF ORGANIC CHEMISTRY, 65(4), 1084–1092.

By: P. Rao n, B. Littler n, G. Geier n & J. Lindsey n

MeSH headings : Acylation; Magnetic Resonance Spectroscopy; Methane / analogs & derivatives; Methane / chemical synthesis; Methane / chemistry; Methane / metabolism; Molecular Structure; Porphyrins / chemical synthesis; Porphyrins / chemistry; Porphyrins / metabolism; Pyrroles / chemical synthesis; Pyrroles / chemistry; Pyrroles / metabolism; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1999 journal article

An efficient one-flask synthesis of N-confused tetraphenylporphyrin

ORGANIC LETTERS, 1(9), 1455–1458.

By: G. Geier n, D. Haynes n & J. Lindsey n

MeSH headings : Chromatography, High Pressure Liquid; Porphyrins / chemical synthesis
TL;DR: It is found that methanesulfonic acid catalyzed condensation of pyrrole and benzaldehyde followed by DDQ oxidation provides N-confused tetraphenylporphyrin (NC-TPP) in up to 39% yield in analytical scale experiments. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1999 journal article

N-confused tetraphenylporphyrin and tetraphenylsapphyrin formation in one-flask syntheses of tetraphenylporphyrin

JOURNAL OF ORGANIC CHEMISTRY, 64(5), 1596–1603.

By: G. Geier n & J. Lindsey n

TL;DR: The studies indicate that the scope of conditions yielding NC-TPP is extremely broad, and makes for straightforward isolation of the purified porphyrin devoid of contaminating N-confused porphyrsin. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

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