Syntheses of the two optical isomers of the insect anti-juvenile hormone agent ethyl p-[2-(t-Butylcarbonyloxy)butoxy]benzoate (ETB) and their biological activities

1983 ◽  
Vol 36 (7) ◽  
pp. 1409 ◽  
Author(s):  
DHS Horn ◽  
RH Nearn ◽  
JB Siddall ◽  
GB Staal ◽  
DC Cerf
Keyword(s):  
Juvenile Hormone ◽  
Manduca Sexta ◽  
Topical Treatment ◽  
Low Dose ◽  
Biological Activities ◽  
Racemic Mixture ◽  
Optical Isomers ◽  
Hormone Activity ◽  
Juvenile Hormone Activity ◽  
Dose Levels

The optical isomers (9) and (13) of the insect anti-juvenile hormone, (�)-ethyl p-[2-(t-butylcarbonyloxy)butoxy]benzoate (ETB) (14), have been synthesized and their biological activities examined in the tobacco hornworm Manduca sexta. It was found that the observed anti-juvenile hormone activity at low dose levels and juvenile hormone activity at higher levels in the Manduca sexta, after topical treatment with the racemic mixture (14) is due entirely to the (–)-enantiomer (9), the (+)-enantiomer (13) being completely inactive.

Inhibition of spiracle and crochet formation and juvenile hormone activity of isothiocyanate derivatives in the tobacco hornworm, Manduca sexta

1989 ◽  
Vol 35 (3) ◽  
pp. 259-274 ◽  
Author(s):  
István Ujváry ◽  
György Matolcsy ◽  
Lynn M. Riddiford ◽  
Kiyoshi Hiruma ◽  
Kathleen L. Horwath
Keyword(s):  
Juvenile Hormone ◽  
Manduca Sexta ◽  
Tobacco Hornworm ◽  
Hormone Activity ◽  
Juvenile Hormone Activity

Juvenile hormone activity of structurally unrelated compounds

1965 ◽  
Vol 11 (12) ◽  
pp. 1641-1649 ◽  
Author(s):  
Howard A. Schneiderman ◽  
A. Krishnakumaran ◽  
V.G. Kulkarni ◽  
Lester Friedman
Keyword(s):  
Juvenile Hormone ◽  
Hormone Activity ◽  
Juvenile Hormone Activity

scholarly journals Utilization of Synthetic Compounds with Juvenile Hormone Activity for the Silkworm Rearing

1972 ◽  
Vol 36 (5) ◽  
pp. 889-892 ◽  
Author(s):  
Masazumi NIHMURA ◽  
Soji AOMORI ◽  
Kenji MORI ◽  
Masanao MATSUI
Keyword(s):  
Juvenile Hormone ◽  
Hormone Activity ◽  
Synthetic Compounds ◽  
Juvenile Hormone Activity

Juvenile hormone activity of ethylfarnesoate dihydrochloride with the cotton stainer Dysdercus cardinalis Gerst

1971 ◽  
Vol 61 (1) ◽  
pp. 41-48 ◽  
Author(s):  
W. R. Bransby-Williams
Keyword(s):  
Juvenile Hormone ◽  
Hormone Activity ◽  
The Family ◽  
Cotton Stainers ◽  
Juvenile Hormone Activity ◽  
Cotton Stainer ◽  
The Tropics ◽  
Dysdercus Cardinalis

Cotton stainers (Dysdercus spp.) are members of the family Pyrrhocoridae and many are pests of cotton throughout the tropics. Ten species are found in Africa (Pearson, 1958). Three of these have been established in colonies at Arusha, Tanzania. They are D. cardinalis Gerst., D. fasciatus Sign. and D. nigrofasciatus Stål.

Studies in terpenoids. IV. Synthetic studies in juvabiones and analogues. Conversion of ar- (+)-turmerone to ar- (+)-juvabione

1968 ◽  
Vol 46 (9) ◽  
pp. 1467-1472 ◽  
Author(s):  
K. Subrahmania Ayyar ◽  
G. S. Krishna Rao
Keyword(s):  
Juvenile Hormone ◽  
Hormone Activity ◽  
Synthetic Compounds ◽  
Juvenile Hormone Activity ◽  
Synthetic Studies ◽  
Synthetic Work

Synthetic work leading to the preparation of todomatuic acids (2a), juvabiones (2b), and ar-(±)-juvabione (8d) and the successful conversion of ar-(+)-turmerone (9) to ar-(+)-juvabione (3b) is presented. The synthetic compounds 2b and 3b exhibit juvenile hormone activity.

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