Literature DB >> 8698100

Tocopheryl acetates from the pupal exocrine secretion of the squash beetle, Epilachna borealis (Coccinellidae).

A B Attygalle1, S R Smedley, T Eisner, J Meinwald.   

Abstract

The oily droplets on the pupal integumental hairs of the squash beetle Epilachna borealis contain a mixture of alpha-, beta-, gamma-, and delta-tocopheryl acetates as major constituents. In addition, the secretion contains a number of minor components that appear to be dehydrocongeners of the major components. This is the first report of the occurrence of acetate esters of any tocopherol in nature.

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Year:  1996        PMID： 8698100     DOI： 10.1007/bf01969741

Source DB:  PubMed          Journal:  Experientia        ISSN： 0014-4754


  7 in total

1.  .alpha.-Tocopheryl acetate as an indicator of municipal waste contamination in the environment.

Authors:  R P Eganhouse; I R Kaplan
Journal:  Environ Sci Technol       Date:  1985-03-01       Impact factor: 9.028

2.  Lipid components in anal scent sacs of three mongoose species (Helogale parvula, Crossarchus obscurus, Suricata suricatta).

Authors:  D M Decker; D Ringelberg; D C White
Journal:  J Chem Ecol       Date:  1992-09       Impact factor: 2.626

3.  [Concerning the chemistry of vitamin E. 7. The stereospecific cyclization of (3'R, 7'R, 11'R)-alpha-tocopherolquinone].

Authors:  H Mayer; W Vetter; J Metzger; R Rüegg; O Isler
Journal:  Helv Chim Acta       Date:  1967-05-31       Impact factor: 2.164

4.  Gas-phase infrared spectroscopy for determination of double bond configuration of monounsaturated compounds.

Authors:  A B Attygalle; A Svatos; C Wilcox; S Voerman
Journal:  Anal Chem       Date:  1994-05-15       Impact factor: 6.986

5.  [Acylation with bis(acylamides). N-methyl-bis(trifluoroacetamide) and bis(trifluoroacetamide), two new reagents for trifluoroacetylation].

Authors:  M Donike
Journal:  J Chromatogr       Date:  1973-04-25

6.  [The stereochemistry of natural gamma-tocotrienol (plastochromanol-3), plastochromanol-8 and plastochromenol-8].

Authors:  H Mayer; J Metzger; O Isler
Journal:  Helv Chim Acta       Date:  1967-07-10       Impact factor: 2.164

7.  Azamacrolides: a family of alkaloids from the pupal defensive secretion of a ladybird beetle (Epilachna varivestis).

Authors:  A B Attygalle; K D McCormick; C L Blankespoor; T Eisner; J Meinwald
Journal:  Proc Natl Acad Sci U S A       Date:  1993-06-01       Impact factor: 11.205
  7 in total
  1 in total

1.  Polyazamacrolides from ladybird beetles: ring-size selective oligomerization.

Authors:  F C Schroeder; S R Smedley; L K Gibbons; J J Farmer; A B Attygalle; T Eisner; J Meinwald
Journal:  Proc Natl Acad Sci U S A       Date:  1998-11-10       Impact factor: 11.205
  1 in total

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