5. ONIUM COMPOUNDS
187
TABLE II (Continued)
'•Cr
ΝΘ
CONH 2
CH 3
C0 2
ΝΘ
|
CH 3
9.
ΝΘ
CH 3
10.
CH 3 CH
OCH 3
OCH3
/e\
CH3
CH3
III. SULFONIUM COMPOUNDS
1. CH 3 +
>S—CH 2 —CTT 2 —C0 2 -
CH 3
2. See Fig. 6.
3. CH 3
CH 3
+
>S—CH 2 —CH 2 —CHNH 2 —C0 2
may be included in this class, among them those involved in the biosynthesis of creatine, 3-methoxyepinephrine, and spermidine.
In the second class elimination results from nucleophilic attack on a
/^-hydrogen with expulsion of the hetero atom. The reaction may be generally formulated as in Eq. 2:
Y + H-^CH 2 -^CH 2 J-NR 3 -> YH + CH 2 =CH 2 + NR 3
(2)
8.
187
TABLE II (Continued)
'•Cr
ΝΘ
CONH 2
CH 3
C0 2
ΝΘ
|
CH 3
9.
ΝΘ
CH 3
10.
CH 3 CH
OCH 3
OCH3
/e\
CH3
CH3
III. SULFONIUM COMPOUNDS
1. CH 3 +
>S—CH 2 —CTT 2 —C0 2 -
CH 3
2. See Fig. 6.
3. CH 3
CH 3
+
>S—CH 2 —CH 2 —CHNH 2 —C0 2
may be included in this class, among them those involved in the biosynthesis of creatine, 3-methoxyepinephrine, and spermidine.
In the second class elimination results from nucleophilic attack on a
/^-hydrogen with expulsion of the hetero atom. The reaction may be generally formulated as in Eq. 2:
Y + H-^CH 2 -^CH 2 J-NR 3 -> YH + CH 2 =CH 2 + NR 3
(2)
8.