Ethyl carbamate and a series of related compounds were given in single intraperitoneal doses to pregnant Syrian hamsters on Day 8 of gestation, and fetuses were examined for malformations on Day 13 of gestation. Urethan produced a variety of malforma tions and growth retardation. Of the compounds modified in the carboethoxy end, n-propyl carbamate was as teratogenic as the ethyl carbamate, and ...

Ethyl carbamate and a series of related compounds were given in single intraperitoneal doses to pregnant Syrian hamsters on Day 8 of gestation, and fetuses were examined for malformations on Day 13 of gestation. Urethan produced a variety of malforma tions and growth retardation. Of the compounds modified in the carboethoxy end, n-propyl carbamate was as teratogenic as the ethyl carbamate, and ...

Methomyl is an oxime carbamate pesticide that is widely used in the Philippines. This insecticide is known to be an endocrine disrupting chemical and a potent genotoxic in mammalian cells. However, limited studies were conducted specifically on its direct effects on estrous cycle and its teratogenic effect. This study aimed to (a) assess the effect of methomyl on the body weight and on the estr...

A series of ruthenium catalysts have been screened under ring-closing metathesis (RCM) conditions to produce five-, six-, and seven-membered carbamate-protected cyclic amines. Many of these catalysts demonstrated excellent RCM activity and yields with as low as 500 ppm catalyst loadings. RCM of the five-membered carbamate series could be run neat, the six-membered carbamate series could be run ...

insect growth regulators and spinosyns which are physiologically and ecologically selective, respectively, have been investigated as replacements or complements to non-selective conventional insecticides. the effects of diflubenzuron, hexaflumuron, profenofos, spinosad and thiodicarb were assessed on the 1st instars of cotton bollworm, helicoverpa armigera (hã¼bner) using dietary and leaf disc ...

New donor building blocks, i.e., triarylamino derivatives, are of great interest for the production organic photovoltaic materials. In this communication, bis(4′-(hexyloxy)-[1,1′-biphenyl]-4-yl)amine was synthesized in a two-step process via hydrolysis its tert-butyl carbamate derivative. tert-Butyl bis(4′-(hexyloxy)-[1,1′-biphenyl]-4-yl)carbamate obtained by Suzuki cross-coupling reaction bis(...

The psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae) is one of the most important pests of citrus worldwide because it efficiently vectors three bacteria in the genus Candidatus Liberibacter that cause the devastating citrus greening disease (huanglongbing). Current management practices for this insect pest rely on multiple sprays of foliar insecticides and one or two applications of so...