摘要:
The present invention generally relates to a method of treating plants or plant parts comprising the step of contacting said plants or plant parts with at least one composition comprising at least one double bond adducted cyclopropene compound.
摘要:
This invention relates to a process for preparing 2-substituted pyridines via metal halogen exchange with sec-butyllithium on optionally substituted 2-bromo or 2-iodopyridines. The resulting lithopyridine intermediate is reacted with an electrophile to provide the desired 2-substituted pyridine. The substitution of sec-butyllithium for n-butyllithium in such a process results in an enhanced yield and purity of the desired 2-substituted pyridine.
摘要:
A method to inhibit the ethylene response in plants with cyclopropene compounds by first generating stable cyclopropane precursor compounds and then converting these compounds to the gaseous cyclopropene antagonist compound by use of a reducing or nucleophilic agent.
摘要:
A selective process is provided for preparing a hydrazide by reacting an aromatic anhydride with a tertiary alkyl hydrazine and then reacting the resultant acyl hydrazide with an aromatic acid chloride.
摘要:
The present invention generally relates to a method of treating plants or plant parts comprising the step of contacting said plants or plant parts with at least one composition comprising at least one double bond adducted cyclopropene compound.
摘要:
A process for preparing a N- t -alkyl-1,2-diacylhydrazine comprises reacting a 1, 3, 4-oxadiazole with a tertiary alkyl cation precursor in the presence of a strong acid catalyst.