A mild, convenient protocol for the synthesis of cis-aziridines employs a catalytic amount of Brnsted acid. Diazo compound decomposition via alkylation or homocoupling upon exposure to a proton source is slow relative to [2 + 1] annulation in the presence of a Schiff base. A. L. Williams, J. N. Johnston, J. Am. Chem.
The tropical savanna is a biome characterized by tall grasses and occasional trees. Large regions of tropical savanna extend through the nations of Botswana, Namibia, and Kenya in Africa, southern Brazil, India, and Australia. Surprisingly, the Everglades of southern Florida in North America is also a tropical savanna. Photo  2000-www.arttoday.com.
The main feature in the tropical rainforest of Zaire, Africa is a  land covered by vegetation, vines, climbers, and many different  types of trees. It has a hot and humid cl â¦ imate. Answered. In Rainforests. tropical rainforest is a type of biome found in hot, humid environments in equatorial climates,The tropical rainforest is a unique with a constant temperature and a high ra â¦ infall. The temperature is warm because of it bring close to the equator. Also the average temprature is about 25 degrees celcius.