＜Chemical production of Flavors & Fragraces＞

L-Menthol (Example)

１．Production of L-Menthol (Mint)

Production of L-menthol is largest among synthetic fragrances.

Amount is about 3000ton a year in Japan.

We can make L-menthol from natural resources or petro chemicals.

Until now, expansive development of L-menthol has been continued, thinking of economical point.

Varieties of fragrance compounds were produced from derived intermediates.

Most of the organic synthetic techniques will be condensed in the L-menthol process.

L-menthol demand will be up in future and creative deveropment will be continued.

Application of L-menthol is as folowings;

Medicine, tobacco,poultice,chewing gum, tooth paste,candy etc.

I had a good experience in the midst of this development. 　　　

２．Features of this technology

It is a epoch-making event that we used asymmetric molecular catalyst first time in the world in industrial scale.

The catalyst consists of BINAP ligand and Rh(Rodium) complex, which will produce 100% optically pure compounds.

The BINAP catalyst was created by Prf.NOYORI etal, to whom the Nobel prize was granted.

３．Chemical formula