A wide variety of new sulphur-containing heteroalicyclic liquid-crystalline compounds have been synthesized. Special attention has thus been focussed on the influence of the heteroatoms on the mesomorphic behaviour. 2-Cyclohexyl substituted 1,3-dithianes and 1,3-oxathianes have been found to be ...
The invention relates to a process for the preparation of heteroalicyclic compounds nitrated on the nitrogen. The process comprises the reaction of an N-monosilylated heteroalicyclic compound with nitrogen pentoxide, preferably in an inert organic solvent, between -10 and +10 DEG C, and then ...
A method of preparing heteroalicyclic N-vitro compounds consists\nof the steps of reacting a heteroalicyclic N-monosilylated compound with\ndinitrogen pentoxide, preferably within an inert organic solvent and\nwithin the temperature range -10掳C to +10掳C, and separating the\nN-vitro\nproduct ...
A method of preparing heteroalicyclic N-nitro compounds consists of the steps of reacting a heteroalicyclic N-monosilylated compound with dinitrogen pentoxide, preferably within an inert organic solvent and within the temperature range -10 DEG C to +10 DEG C, and separating the N-nitro product...
The invention relates to a process for the preparation of heteroalicyclic compounds nitrated on the nitrogen. The process comprises the reaction of an N-monosilylated heteroalicyclic compound with nitrogen pentoxide, preferably in an inert organic solvent, between -10 and +10 DEG C, and then ...
A method of preparing heteroalicyclic N-nitro compounds consists of the steps of reacting a heteroalicyclic N-monosilylated compound with dinitrogen pentoxide, preferably within an inert organic solvent and within the temperature range -10 DEG C to +10 DEG C, and separating the N-nitro product...
A method of preparing heteroalicyclic N-nitro compounds consists of the steps of reacting a heteroalicyclic N-monosilylated compound with dinitrogen pentoxide, preferably within an inert organic solvent and within the temperature range -10 DEG C to +10 DEG C, and separating the N-nitro product...