Highly stereoselective and completely regiospecific method for the dehydration of .beta.-hydroxy esters via .beta.-alanoxy enolates. Application to the synthesis of trisubstituted olefins and two ant mandibular gland secretions

1974 ◽  
Vol 96 (19) ◽  
pp. 6153-6158 ◽  
Author(s):  
John A. Katzenellenbogen ◽  
Thanin Utawanit
Keyword(s):  
Mandibular Gland ◽  
Trisubstituted Olefins ◽  
Hydroxy Esters ◽  
Mandibular Gland Secretions

Mandibular gland secretions of the male beewolvesPhilanthus crabroniformis, P. barbatus, andP. pulcher (Hymenoptera: Sphecidae)

1992 ◽  
Vol 18 (1) ◽  
pp. 27-37 ◽  
Author(s):  
C. A. McDaniel ◽  
J. O. Schmidt ◽  
R. W. Howard
Keyword(s):  
Mandibular Gland ◽  
Mandibular Gland Secretions

Multicomponent Mandibular Gland Secretions in Three Species of Andrena Bees (Hym., Apoidea)

1982 ◽  
Vol 37 (11-12) ◽  
pp. 1124-1129 ◽  
Author(s):  
Gunnar Bergström ◽  
Jan Tengö ◽  
Wolfgang Reith ◽  
Wittko Francke
Keyword(s):  
Biological Activity ◽  
Mandibular Gland ◽  
Point Of View ◽  
Straight Chain ◽  
High Biological Activity ◽  
Quantitative Distribution ◽  
Males And Females ◽  
Distribution Of Components ◽  
Minor Concentration ◽  
Mandibular Gland Secretions

Abstract 50 volatile constituents of the mandibular gland secretions in males and females of three species of Andrena bees, A. wilkella (Chr.), A. ovatula (K .) and A. ocreata (K .), have been identified. The secretions are made up of a series of spiroacetals of four different systems together with mono-terpenes and unbranched acyclic compounds. Many of the components, particularly several of the dominant ones, occur in both sexes of all three species, so that the volatile secretions are qualita­tively very similar. Females contain about 100 μg per individuum , which is 3-5 times the amount of the males’ secretions. Major spiroacetals are E,E- and Z ,E-2,8-dimethyl-1,7-dioxa-spiro[5.5]undecane and E,E-and Z,E-2-ethyl-7-methyl-1,6-dioxaspiro[4.5]undecane, while prominent monoterpenes are geraniol and citronellol. Straight chain hydrocarbons C17, C19, C21 and C23 occur in fairly large amounts, mostly with increasing concentrations. With respect to the quantitative distribution of components of minor concentration, the bouquet of A. wilkella is clearly distinguishable from A. ovatula and A. ocreata which from the morphological and ethological point of view are more closely related. Behaviour tests with A. wilkella indicate high biological activity of the main spiroacetal.

A comparative analysis of mandibular gland secretions in the ant tribe tetramoriini

1980 ◽  
Vol 10 (1) ◽  
pp. 107-112 ◽  
Author(s):  
C. Longhurst ◽  
R. Baker ◽  
P.E. Howse
Keyword(s):  
Comparative Analysis ◽  
Mandibular Gland ◽  
Mandibular Gland Secretions

Chemistry of male mandibular gland secretions ofPhilanthus basilaris cresson andPhilanthus bicinctus (Mickel) (Hymenoptera: Sphecidae)

1987 ◽  
Vol 13 (2) ◽  
pp. 227-235 ◽  
Author(s):  
C. A. McDaniel ◽  
R. W. Howard ◽  
K. M. O'Neill ◽  
J. O. Schmidt
Keyword(s):  
Mandibular Gland ◽  
Mandibular Gland Secretions

Chemistry of Mandibular Gland Secretions of Small Carpenter Bees (Ceratina Spp.)1

1977 ◽  
Vol 70 (5) ◽  
pp. 635-636 ◽  
Author(s):  
J. W. Wheeler ◽  
M. S. Blum ◽  
H. V. Daly ◽  
C. J. Kislow ◽  
J. M. Brand
Keyword(s):  
Mandibular Gland ◽  
Carpenter Bees ◽  
Mandibular Gland Secretions

scholarly journals Comparative chemical analysis of army ant mandibular gland volatiles (Formicidae: Dorylinae)

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5319 ◽  
Author(s):  
Adrian Brückner ◽  
Philipp O. Hoenle ◽  
Christoph von Beeren
Keyword(s):  
Solid Phase ◽  
Keystone Species ◽  
Chemical Compounds ◽  
Mandibular Gland ◽  
Army Ants ◽  
Army Ant ◽  
Alarm Communication ◽  
Gland Volatiles ◽  
Precise Role ◽  
Mandibular Gland Secretions

Army ants are keystone species in many tropical ecosystems. Yet, little is known about the chemical compounds involved in army ant communication. In the present study, we analyzed the volatile mandibular gland secretions—triggers of ant alarm responses—of six Neotropical army ant species of the genus Eciton (outgroup: Nomamyrmex esenbeckii). Using solid-phase microextraction, we identified 12 chemical compounds, primarily ketones with associated alcohols, one ester and skatole. Most compounds were shared among species, but their relative composition was significantly different. By comparing chemical distances of mandibular gland secretions to species divergence times, we showed that the secretions’ compositions are not strictly determined by phylogeny. By identifying chemical bouquets of seven army ant species, our study provides a valuable comparative resource for future studies aiming to unveil the chemicals’ precise role in army ant alarm communication.

Mandibular gland secretions of two parasitoid wasps (Hymenoptera: Ichneumonidae)

1985 ◽  
Vol 11 (8) ◽  
pp. 1115-1127 ◽  
Author(s):  
N. W. Davies ◽  
J. L. Madden
Keyword(s):  
Mandibular Gland ◽  
Parasitoid Wasps ◽  
Mandibular Gland Secretions

Chemistry of male mandibular gland secretions ofPhilanthus triangulum

1990 ◽  
Vol 16 (7) ◽  
pp. 2135-2143 ◽  
Author(s):  
J. O. Schmidt ◽  
C. A. McDaniel ◽  
R. T. Simon Thomas
Keyword(s):  
Mandibular Gland ◽  
Mandibular Gland Secretions

Mandibular gland secretions in alloxystine wasps (Hymenoptera, Cynipoidea, Charipidae): do ecological or phylogenetical constraints influence occurrence or composition?

2002 ◽  
Vol 30 (6) ◽  
pp. 505-523 ◽  
Author(s):  
Gerhard Hübner ◽  
Wolfgang Völkl ◽  
Wittko Francke ◽  
Konrad Dettner
Keyword(s):  
Mandibular Gland ◽  
Mandibular Gland Secretions
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