A short and efficient preparation of methyl-[1,2,4]oxadiazolium derivatives with plant-inducing activity
A short and efficient preparation of methyl-[1,2,4]oxadiazolium derivatives with plant-inducing activity is discussed. A concise and efficient synthetic method leading to structurally diverse array of oxadiazolium derivatives, starting from halogenated phenols is also developed. The starting point of the synthesis is the Lewis acid mediated addition of isocyanates to phenols. The strategy also involves a new and rapid access to all meta-halogenated salicylic acids, compounds of high synthetic value.
Dobler, Markus R.
p. 963 - 964
(2007/10/03)
Process for introducing a thiocarboxylic ester group at the ortho-position of phenols or phenylamines
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(2008/06/13)
EXLUSIVE ORTHO CYANATION AND ALKYLTHIOCARBONYLATION OF ANILINES AND PHENOLS USING BORON TRICHLORIDE
Use of boron trichloride with or without an aditional Lewis acid makes possible a one-step synthesis of 2-cyano and 2-alkylthiocarbonyl anilines and phenols.
Adachi, Makoto,Sugasawa, Tsutomu
p. 71 - 84
(2007/10/02)
Process for introducing a thiocarboxylic ester group at the orthoposition of phenols or phenylamines
A process for introducing thiocarboxylic ester at ortho-position of phenols or phenylamines which comprises reacting a phenyl compound having group or optionally substituted amino or cyclic amino group, of which at least one ortho-position is vacant, with
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(2008/06/13)
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