Methods of Manufacturing
Triadimefon can be produced by dichlorination of pinacolone followed by substitution with sodium p-chlorophenoxide and triazole in a one-pot reaction.
Preparation: W. Meiser et al., DE 2201063 corresponding to US 3912752 (1973, 1975 to Bayer).
Consumption Patterns
The estimated amount of triadimefon applied in the United States in 1982 and 1989 was 52 and 250 (1000 lbs AI/year), respectively.
Screening level estimates of triadimefon use in the U.S., based on data from the years 1990 through 2000, have been provided by the Agency's Biological and Economic Analysis Division. Total use averaged 135,000 lbs ai/year with an upper-end estimate of 266,000 lbs ai/year. The largest market, in terms of total pounds ai, was seen in the turf and ornamental sector.