Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.

Zsuzsanna Budai

Jozsef Szejtli

Gabriella Pap Nee Imrenyi

Andras Kerekes

Laszlo Papp

Magda Tetenyi Nee Erdosi

Erzsebet Radvany Nee Hegedus

Gyorgy Kormoczy

The invention relates to new inclusion complexes of piperonyl butoxide formed with cyclodextrin. The new complex of the invention can be prepared by reacting cyclodextrin or a solution thereof formed with water and/or an organic solvent having 1-4 carbon atoms, preferably ethanol with piperonyl butoxide or a solution thereof formed with an organic solvent having 1-4 carbon atoms, preferably ethanol at a temperature between 20.degree. C. and 90.degree. C., whereby the piperonyl butoxide is used in an amount of 0.6-1.5 moles related to 1 mole of cyclodextrin. The complexes of the present invention synergize the pesticidal effect of known insecticides and fungicides to a much higher extent of known insecticides and fungicides to a much higher extent than piperonyl butoxide used per se.

Cyclodextrin inclusion complex of piperonyl butoxide

The present invention relates to new inclusion complexes of 2-chloro ethyl phosphonic acid formed with .alpha.-, .beta.- and/or .gamma.-cyclodextrin or a mixture thereof. The new inclusion complexes contain preferably 10-30% of 2-chloro ethyl phosphonic acid. The new complexes of the present invention are prepared by reacting 2-chloro ethyl phosphonic acid with .alpha.-, .beta.- and/or .gamma.-cyclodextrin or a mixture of one or more of the said cyclodextrins and linear dextrins and/or partially decomposed starch. The new inclusion complexes of the present invention can be used for the preparation of plant growth regulating compositions.

Hormonal plant growth regulator

Inclusion complexes of cyclodextrin and strong inorganic oxy acids are disclosed as well as a process for the preparation of the complexes. The complexes are useful for analytical purposes, internal buffering, introducing acids into anhydrous media, substitutions or introduction of radicals, or as catalysts.

Inclusion complexes of cyclodextrins and strong inorganic oxy-acids and

Growing community of inventors

Budapest, Hungary

Zsuzsanna Budai