Reference

Prepartion of 2,3-dihydrobenzofuranyl chrysanthemate analogs as pesticides

Prepartion of 2,3-dihydrobenzofuranyl chrysanthemate analogs as pesticides. Mueller, Stefan; Wolf, Bernd; Theobald, Hans; Harreus, Albrecht; Kardorf, Uwe; Kuenast, Christoph (BASF A.-G., Germany). 78246-90-9 are also occured in this study. Eur. Pat. Appl.Some chemicals with cas registry numbers like 78246-90-9 are also used. EP 473041 A1 4 Mar 1992, 21 pp. DESIGNATED STATES: R: BE, CH, DE, DK, ES, FR, GB, IT, LI, NL. (European Patent Organization). CODEN: EPXXDW. CLASS: ICM: C07D307-80. ICS: A01N043-12. APPLICATION: EP 91-113881 20 Aug 1991. PRIORITY: DE 90-4027572 31 Aug 1990. DOCUMENT TYPE: Patent CA Section: 30 (Terpenes and Terpenoids) Section cross-reference(s): 5, 27 Title compds. I [R1 = H, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, cyano; R2,R3 = H, C1-4 alkyl; n = 0, 1] were prepd. as insecticidal and acaricidal pesticides. Thus, 6-bromo-2-ethyl-2-methyl-2,3-dihydrobenzofuran was formylated by N-formylpiperidine and the product was reduced by NaBH4 to give (2,2-diethyl-2,3-dihydrobenzofuran-6-yl)methanol. 3-(2'-Chloro-3',3',3'-trifluoroprop-2-enyl)-2,2-dimethylcyclopropanecarb nyl chloride was esterified by the latter to give title compd. I [R1 = H; R2,R3 = Et]. Another I [R1 = H; R2 = Me; R3 = Et] was active as a foliar spray at 400-1000 ppm against Aphis Fabae on beans. ..

Prepartion of 2,3-dihydrobenzofuranyl chrysanthemate analogs as pesticides

Prepartion of 2,3-dihydrobenzofuranyl chrysanthemate analogs as pesticides. Mueller, Stefan; Wolf, Bernd; Theobald, Hans; Harreus, Albrecht; Kardorf, Uwe; Kuenast, Christoph (BASF A.-G., Germany). 78246-90-9 are also occured in this study. Eur. Pat. Appl.Some chemicals with cas registry numbers like 78246-90-9 are also used. EP 473041 A1 4 Mar 1992, 21 pp. DESIGNATED STATES: R: BE, CH, DE, DK, ES, FR, GB, IT, LI, NL. (European Patent Organization). CODEN: EPXXDW. CLASS: ICM: C07D307-80. ICS: A01N043-12. APPLICATION: EP 91-113881 20 Aug 1991. PRIORITY: DE 90-4027572 31 Aug 1990. DOCUMENT TYPE: Patent CA Section: 30 (Terpenes and Terpenoids) Section cross-reference(s): 5, 27 Title compds. I [R1 = H, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, cyano; R2,R3 = H, C1-4 alkyl; n = 0, 1] were prepd. as insecticidal and acaricidal pesticides. Thus, 6-bromo-2-ethyl-2-methyl-2,3-dihydrobenzofuran was formylated by N-formylpiperidine and the product was reduced by NaBH4 to give (2,2-diethyl-2,3-dihydrobenzofuran-6-yl)methanol. 3-(2'-Chloro-3',3',3'-trifluoroprop-2-enyl)-2,2-dimethylcyclopropanecarb nyl chloride was esterified by the latter to give title compd. I [R1 = H; R2,R3 = Et]. Another I [R1 = H; R2 = Me; R3 = Et] was active as a foliar spray at 400-1000 ppm against Aphis Fabae on beans. ..