US8216973B2 - 2-[(1h-Pyrazole-4-Ylmethyl)-Sulfonyl]-Oxazole-Derivative, 2-[(1h-Pyrazole-4-Ylmethyl)-Sulfanyl]-Oxazole-Derivatives, and Chiral 2-[(1h-Pyrazole-4-Ymethyl)sulfinyl]oxazole Derivatives, Methods for the Production Thereof, and Use Thereof as Herbicides and Plant Growth Regulators