摘要:
The present invention is concerned with novel odorant compositions which are characterized by a content of cyclic compounds of the formula ##STR1## From this group of compounds the compounds I' with the meanings b), d), f) and g) are novel compounds.
摘要翻译:本发明涉及新型加臭剂组合物,其特征在于式(I)的环状化合物的含量。 。 。 X 。 。 。 具有以下含义之一:从这组化合物中,具有含义b),d),f)和g)的化合物I是新化合物。
摘要:
The invention concerns novel odorants of formula I wherein R is hydrogen or methyl. ##STR1## The invention also concerns fragrance compositions containing I. Formula I is intended to particularly embrace as the racemates, (.+-.)-3.alpha.-acetyl-3.beta.,4.beta.,5,5-tetramethyl-2,3,4,4a.beta.,5,6,7,8-octahydronapthalene and (.+-.)-3.alpha.-acetyl-4.beta.,5,5,-trimethyl-2,3.beta.,4,4a.beta.,5,6,7,8-octahydronapthalene.
摘要:
The invention concerns novel odorants of formula I wherein R is hydrogen or methyl. ##STR1## The invention also concerns fragrance compositions containing I. Formula I is intended to particularly embrace as the racemates, (.+-.)-3.alpha.-acetyl-3.beta.,4.beta.,5,5-tetramethyl-2,3,4,4a.beta.,5,6,7,8-octahydronapthalene and (.+-.)-3.alpha.-acetyl-4.beta.,5,5-trimethyl-2,3.beta.,4,4a.beta.,5,6,7,8-octahydronapthalene.
摘要:
A device for branching gas flows, more particularly in a gas chromatography plant, the device having: an inlet branch connected to the output of a separating column; and two outlet branches which extend from a junction to subsequent parts of the plant, characterised in that one outlet branch is connected by way of a shutoff valve to a device producing a pressure lower than the pressure in the other outlet branch.
摘要:
For admixing a gaseous substance, especially an odoriferous substance, into a gas stream. The gaseous substance is fed by means of a carrier gas (23) via a line (10) to a mixing chamber (1). The line contains at least one capillary (19), which is arranged in an advancing device (9) with two defined positions. In a first position the capillary extends through an opening (6), into the mixing chamber. In a second position the capillary opens outside of the mixing chamber in a suction removal space (25) surrounding the mixing chamber. Preferably the carrier gas is flowing continuously and suction removal means (26) are provided which remove the carrier gas together with the gaseous substance when the capillary opens in the suction removal space.