Full text: Ueber stereochemische Untersuchungen in der Piperidinreihe

21 
H 
H 
H 
H— 
H 
CH 3 - 
CHs 
-N- 
H- 
—H 
—h 
—CH, 
H 
C = S 
I 
SH 
H— 
H 
CH,— 
CH, 
H-N 
a a-Thiocarbaminat 
N labil Sp. 144—145° 
H 
-N> 
-H 
H 
-CH, 
H 
C = S 
I 
SH 
H- 
H— 
H 
CH.— 
H 
-N 
/ 
N—H 
« b-Thiocarbaminat 
N stabil Sp. 187-188° 
H 
H N' " 
—H 
-H 
C = S 
I 
SH 
-CH, 
CH, 
H 
H 
CH,— 
H— 
H—N 
ß a-Thiocarbaminat 
N labil Sp. 164—165° 
—H 
H I 
SH 
— CH, 
CH, 
C = S 
N-H 
ß b-Thiocarbaminat 
N stabil Sp. 171—172° 
Die diesen vier Isomeren entsprechenden symmetrischen 
Thioharnstoffe, die durch Behandeln mit alkoholischem Jod 
entstehen, haben folgende Formelbilder. 
1. Aus «a-Thiocarbaminat durch Jod entsteht: 
S 
H 
H— 
H 
CH,— 
CH, 
-NH-C-NH- 
—H 
H 
-CH, 
H 
H— 
H 
CH, 
H 
H-N 
-H 
—H 
H 
—CH, 
CH, 
N-H 
a a-Thioharnstoff Sp. 206°,
	        

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