Monatshefte fur Chemie p. 1189 - 1202 (1980)
Update date:2022-08-29
Topics:
Wendelin, Winfried
Zmoelnig, Ilse
Schramm, Hans-Wolfgang
Guanidine reacts with cyclohexanone, cycloheptanone, acetone and 3-pentanone, resp., in a molar ratio 2:1 to give the 1,3,5-triazaspiro<5.5>undeca- and <5.6>dodeca-1,3-dien-2,4-diamines 3a and 3b resp. and the 6,6-dimethyl- resp. diethyl-1,6-dihydro-1,3,5-triazin-2,4-diamines 3d and 3e resp.On the contrary, action of guanidine on cyclpentanone yields not 3c, but the 1',5',6',7'-tetrahydrospiro
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