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I |
II |
III |
IV |
V |
VI |
VII |
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---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Arylurea |
Arylamine, moles |
Water, ml. |
Acetic Acid, ml., |
Sodium Cyanate moles, |
Initial Temperature, °C |
Yield, % |
|||||||
0.5 |
500 |
50 |
1.0 |
25 |
96 |
||||||||
0.5 |
400 |
75 |
1.0 |
30 |
86 |
||||||||
0.5 |
400 |
75 |
1.0 |
30 |
94 |
||||||||
0.3 |
500 |
350 |
0.6 |
40 |
80 |
||||||||
0.25 |
400 |
400 |
0.5 |
30 |
75 |
||||||||
0.3 |
150 |
30 |
0.6 |
40 |
94 |
||||||||
0.5 |
500 |
75 |
1.0 |
25 |
95 |
||||||||
0.3 |
500 |
120 |
0.6 |
20 |
54 |
||||||||
0.5 |
500 |
170 |
1.0 |
20 |
88 |
||||||||
0.5 |
300 |
150 |
1.0 |
20 |
90 |
||||||||
0.5 |
100 |
250 |
1.0 |
25 |
92 |
||||||||
0.5 |
100 |
200 |
1.0 |
25 |
92 |
||||||||
Appendix
Compounds Referenced (Chemical Abstracts Registry Number)
ethanol (64-17-5)
acetic acid (64-19-7)
chloroform (67-66-3)
sulfur dioxide (7446-09-5)
nitrogen (7727-37-9)
Phenylurea (64-10-8)
potassium cyanate (590-28-3)
isocyanic acid (75-13-8)
sodium cyanate (917-61-3)
ethyl allophanate (626-36-8)
p-bromoaniline (106-40-1)
p-Bromophenylurea, Urea, (p-bromophenyl)- (1967-25-5)
p-Tolylurea (622-51-5)
m-Tolylurea (63-99-0)
o-Tolylurea (614-77-7)
p-Methoxyphenylurea (1566-42-3)
p-Ethoxyphenylurea (150-69-6)
m-Ethoxyphenylurea (13142-86-4)
m-Bromophenylurea (2989-98-2)
o-Bromophenylurea (13114-90-4)
o-Chlorophenylurea (114-38-5)