摘要:
A method for producing m-hydroxy-acetophenone which comprises allowing m-(2-hydroxy-2-propyl)cumene hydroperoxide to react at 30.degree. to 100.degree. C. in the presence of an aqueous solution containing 0.001 to 1 mole of iron salt per mole of said compound, 0.01 to 4 moles of copper salt per mole of said iron salt, and mineral acid to give m-(2-hydroxy-2-propyl)acetophenone, then allowing the resulting compound to react at 30.degree. to 95.degree. C. in the presence of 1 to 20 moles of 5 to 90% by weight aqueous hydrogen peroxide solution per mole of said compound and acid catalyst to form m-(2-hydroperoxy-2-propyl)acetophenone, and further subjecting the product formed to acid decomposition. m-Hydroxyacetophenone is an important intermediate in the fields of pharmaceuticals, agricultural chemicals, dyestuffs and the like.
摘要:
A vehicle including an engine, a tilting sensor configured to detect that a vehicle body of the vehicle has been tilted a predetermined angle or larger, a driving state sensor configured to detect a driving state of the vehicle using a component other than the tilting sensor, and a determiner configured to determine whether or not to stop the engine, based on a signal received from the tilting sensor, and a signal received from the driving state sensor.
摘要:
An air-intake duct for a vehicle, which couples a throttle device for controlling an air-intake amount of an engine to an air cleaner for cleaning air guided to the throttle device, includes a tubular wall forming an inlet through which air from the air cleaner flows into the air-intake duct; an outlet through which the air flows out to the throttle device; and an air-intake passage connecting the inlet to the outlet; wherein the tubular wall includes an injector attaching portion to which an injector for injecting fuel to the air-intake passage is attached, and the injector attaching portion has a fuel injection opening section communicating with the air-intake passage.