To obtain the subject compound useful for synthesizing medicines, agrochemicals, dyestuff, etc., without any toxic troubles and under mild conditions by making an acid act on a compound produced by reacting a methylenedioxepane with aldoxime compound.
This compound shown by the formula R1-C≤N [R1 is a (substituted) alkyl, alkenyl, aralkyl or aryl] is prepared by obtaining an orthoester derivative expressed by the formula [e.g. 2-methyl-(1-ox-2-azo-5- phenyl-2-pentenyl)-1,3-dioxepane] by reacting an aldoxime compound (e.g. 3- phenylpropanealdoxime, etc.), of the formula R1-CH≤N-OH with 2-methyl-1,3- dioxepane, preferably, in an organic solvent normally at a temperature between the solidifying point of the system and 60°C, followed by contacting the orthoester derivative with an acid such as mineral acid represented by hydrochloric acid, etc., or Lewise acid represented by aluminum chloride, etc., normally, in an organic solvent, at a temperature between the solidifying point of the system and 60°C.
| JPH05214009 | PRODUCTION OF POLYMER |
| WO/2000/054769 | PROTEASE INHIBITORS |
| JP2024055818 | Salt, acid generator, resist composition, and method for producing resist pattern |
TERAO KEIJI
TANI SHOHEI
FUKUZAWA SHINICHI
WACKER CHEMIE GMBH
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