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b) 2,2,6,6-tetramethylcyclohexylamine a solution of 1 g of the compound obtained in the previous step in 30 ml of acoh is cooled to 0 raney to rise to rt.
b) 2,2,6,6-tétraméthylcyclohexylamine. on refroidit à 10*c, sous atmosphère d'azote, une solution de 1 g du composé obtenu à l'étape précédente dans 30 ml d'acoh, ajoute 2,5 g de nickel de raney et laisse la température remonter à ta.
Son Güncelleme: 2014-12-03
Kullanım Sıklığı: 1
Kalite:
the crystals formed are filtered off, they are taken up with hexane, filtered off again and washed to give 0.85 g of the expected product. α.sub.d.sup.20 =+1 preparation 2.7 2,2,6,6-tetramethylcyclohexylamine a) 2,2,6,6-tetramethylcyclohexanone-oxime a solution of 2.3 g of hydroxylamine hydrochloride and 3.6 g of sodium acetate in 20 ml of water is added at rt to a solution of 3.4 g of 2,2,6,6-tetramethylcyclohexanone in 20 ml of meoh and the reaction mixture is then refluxed for 48 hours.
a) 2,2,6, 6-tétraméthylcyclohexanone-oxime. a une solution de 3,4 g de 2,2,6,6-tétraméthylcyclohexanone dans 20 ml de meoh, on ajoute à ta une solution de 2,3 g de chlorhydrate d'hydroxylamine et 3,6 g d'acétate de sodium dans 20 ml d'eau puis chauffe à reflux pendant 48 heures.
Son Güncelleme: 2014-12-03
Kullanım Sıklığı: 1
Kalite: