เอกสารการประชุมวิชาการและเสนอผลงานวิจัย มหาวิทยาลัยทักษิณ ครั้งที่ 19 2552 - page 759

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6
N
H O
CH 2CH 3
O S
N
H
S O
O
CH3
œµš¸ Ä®o µ¦Ÿ¨·˜£´ –”r Ethyl N-benzoylthiocarbamate (2)¨³ Isopropyl N-benzoylthiocarbamate(3) Ĝ¦³—´
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¨³ FT-IR ¨³ NMR Áž„˜¦µ °ŠÅšÃ°‡µ¦rµÁ¤˜ (1) —´ŠÂ—ŠÄœ£µ¡š¸É 1
˜µ¦µŠš¸É 2 —ŠÃ‡¦Š¦oµŠŸ¨·˜£´–”r¨³ o °¤¼¨°·œ¢¦µÁ¦— ¨³NMR
°¨„°±°¨rš¸É čo µ¦Ÿ¨·˜£´–”r Ÿ¨ª·Á‡¦µ³®r o°¤¼ ¨ FT-IR¨³ NMR
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Methyl N-benzoylthiocarbamate (1)
FT-IR (KBr disc, cm-1) : 3297 (N-H),
3015(sp2C-H), 2955(sp3C-H), 1717(C=O),
1601,1505,1450( C=C aromatic), 1303(C=S)
1H NMR(CDCl 3, 300 MHz) : G 9.122
( N-H, 1H, br.s), 7.779-7.406(Ar- H, 5H, m),
4.146(CH3, 3H, s)
13C NMR(CDCl3,75 MHz) : G 190.76
( C=O),
162.77(C=S),133.61,133.23,129.43,128.06(C 6
H5), 59.94(CH3)
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Ethyl N-benzoylthiocarbamate (2)
FT-IR (KBr disc, cm-1) : 3258 (N-H),
3100(sp2C-H), 2955(sp3C-H), 1696(C=O),
1604,1566, C=C aromatic), 1281(C=S)
1H NMR(CDCl 3, 300 MHz) : G 9.059
( N-H, 1H, br.s), 7.756-7.346(Ar- H, 5H, m),
4.609(OCH2, 2H, q, J=7 Hz), 1.401
( OCH2CH3, 3H, t, J= 7 Hz)
13C NMR(CDCl3,75 MHz) :
G 189.80( C=O)162.91( C=S),
133.55,133.34,129.41,128.05 (C6H5),
69.92(O-CH2), 14.12(CH2CH3)