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US 3,946,040 AGranted
Propynyl benzyl ethers
AssigneeHoffmann-La Roche Inc.
InventorsMadhukar Subraya Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy
Life of this patent
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Abstract
Propynyl benzyl ethers having juvenile hormone-like activity which are 4-halogen, lower alkyl, lower alkoxy or propynyloxy substituted or 3,4-lower alkylenedioxy substituted and which can also be 3,5- and/or .alpha.-substituted, and insecticide compositions that include at least one propynyl benzyl ether and that can also include a conventional insect-poison.
Claims4
A compound of the formula:
- ##SPC5##
- wherein R.sub.1 and R.sub.2 taken together form a lower alkylenedioxy group having 1 to 4 carbon atoms;
- R.sub.3 and R.sub.4 are hydrogen or lower alkyl;
- and R.sub.5 is hydrogen or lower alkoxy.
1 more element
Dependencies are inferred from the claim text.