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Abstract

Lichen chemistry continues to be a flourishing branch of natural product chemistry. Since the last major review by Elix et al. in volume 35 of this series (274) many new and interesting lichen substances have been isolated and synthesized. This suggests that an update is desirable. As in the previous articles new methods for structure elucidation and synthesis, biosynthesis, chemotaxonomy and biological activities of lichen substances will be discussed. Some other relatively recent treatments of the subject need to be mentioned: A short chapter by Culberson and Elix (100) in Harborne’s Methods in Plant Biochemistry treated lichen constituents. Several minor reviews were published in 1984 (382), 1991 (385) and 1994 (386). Volume III of Galun’s Handbook of Lichenology (311) contains a chapter on chemical constituents of lichens including secondary metabolic products, storage products of lichens, carotenoids and phycobiliproteins.

Keywords

Usnic Acid Tetrahedron Letter Lichen Substance Laser Microprobe Mass Spectrometry Lichen Compound 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abbreviations

A

“Alcohol” part of a depside

ABIBN=AIBN

2,2′-Azabisisobutyronitrile

Ac

Acetyl

BPO

Benzoylperoxide

Bu

Butyl

Bn

Benzyl

Bz

Benzoyl

CDI

1,1′-Carbonyldiimidazole

CPBA

Chloroperoxybenzoic acid

DBU

1,5-Diazabicyclo [5.4.0] undec-5-ene

DCBCI

2,5-Dichlorobenzoylchloride

DCCD

Dicyclohexylcarbodiimide

DCDME

Dichlorodimethyl ether

DHP

3,4-Dihydro-2-H-pyran

DIBAH=DIBAL

Diisobutylaluminiumhydride

DIPA

Diisopropylamide

DiPy

Dipyridyl

DMPA

Dimethylaminopyridine

DMF

Dimethylformamide

DMS

Dimethylsulphate

DMSO

Dimethylsulfoxide

EE

Ethoxyethyl

Et

Ethyl

HMA=HMTA

Hexamethylenetetramine

HMDS

Hexamethyldisiiazide

HMPA

Hexamethylphosphoric acid triamide

LAH

Lithiumaluminiumhydride

LDA

Lithiumdiisopropylamine

MCPBA

m-Chloroperbenzoic acid

Me

Methyl

MEM

Methoxy-ethoxy-ethyl

MOM

Methoxymethyl

Mp

Melting point

MTPA

Methyl-α-trifluoromethoxy-phenylacetyl

NBS

N-Bromosuccinimide

NCS=NCSI

N-Chlorosuccinimide

PCC

Pyridinium chlorochromate

PDC

Pyridinium dichromate

PDM

Phenyldiazomethane

Ph

Phenyl

Piv

Pivaloyl

PPTS

Pyridinium-p-toluenesulphonate

Py

Pyridine

RAMP

(R)-1-Amino-2-(methoxymethyl)pyrrolizidine

RT

Room temperature

S

“Säure” part of a depside

SA

Sulfamic acid

SAMP

(S)-1-mino-2-(methoxymethyl)pyrrolizidine

TBA

tert.-Butanol

TBDM=TBS

tert.-Butyldimethylsilyl

TBOK

K-tert.-butylate

2,4,6,-TCB

2,4,6-Trichlorobenzoyl

TFA

Trifluoroacetic acid

TFAA

Trifluoroacetic anhydride

TFE

Trifluoroethanol

THF

Tetrahydrofuran

THP

Tetrahydropyranyl

TMDA

Tetramethylenediamine

TMS

Trimethylsilyl

TPM

Triphenylmethyl

Ts

Tosyl

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© Springer-Verlag Wien 2001

Authors and Affiliations

  • S. Huneck
    • 1
  1. 1.Langenbogen/SaalkreisGermany

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