Patent number: 4263463
Abstract: Novel alkynylcyclopropanecarboxylic acid esters represented by the formula, ##STR1## wherein R.sub.1 represents hydrogen, halogen, lower alkyl having up to 5 carbon atoms, lower alkenyl having up to 5 carbon atoms, lower alkynyl having up to 5 carbon atoms, C.sub.1 -C.sub.4 alkoxy C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio C.sub.1 -C.sub.4 alkyl, aryl, aryl C.sub.1 -C.sub.4 alkyl, furyl, substituted furyl, thienyl, substituted thienyl, furfuryl, substituted furfuryl, thenyl, substituted thenyl, cyclo C.sub.3 -C.sub.6 alkyl, substituted cyclo C.sub.3 -C.sub.6 alkyl, cyclo C.sub.3 -C.sub.6 alkenyl or substituted cyclo C.sub.3 -C.sub.6 alkenyl; R.sub.2 and R.sub.3 individually represent hydrogen, halogen, lower alkyl having up to 5 carbon atoms, lower alkenyl having up to 5 carbon atoms, lower alkynyl having up to 5 carbon atoms, aryl, aryl C.sub.1 -C.sub.4 alkyl or may form a carbon-carbon bond; or R.sub.1 and R.sub.
Type:
Grant
Filed:
October 26, 1976
Date of Patent:
April 21, 1981
Assignee:
Sumitomo Chemical Company, Limited
Inventors:
Shigeyoshi Kitamura, Norbushige Itaya, Yoshitoshi Okuno, Nobuo Ohno, Takashi Matsuo, Masachika Hirano, Toshio Mizutani, Hisami Takeda
