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85038059170
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note
-
Current catalogue prices range from US$ 0.03-0.04/g for technical grade (60-70%), to US$2-4/g for 97% triethylenetetramine.
-
-
-
-
12
-
-
85038052747
-
-
Bracco S.p.A., WO97/49691-A1
-
This procedure was claimed in two independent patents [a) Argese, M.; Ripa, G.; Scala, A. and Valle, V. (Bracco S.p.A.), Int.Pat.Appl., WO97/49691-A1;
-
Int.Pat.Appl.
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Argese, M.1
Ripa, G.2
Scala, A.3
Valle, V.4
-
13
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85038054809
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-
WO96/28432-A1 without any experimental procedure
-
b) Sandnes, R.W.; Vasilevskis, J.; Undheim, K. and Gacek, M. (Nycomed), Int.Pat.Appl., WO96/28432-A1] without any experimental procedure.
-
Int.Pat.Appl.
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Sandnes, R.W.1
Vasilevskis, J.2
Undheim, K.3
Gacek, M.4
-
14
-
-
85038052906
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-
note
-
Various attempts to isolate occasionally occurring yellow impurities were unsuccessful, due to the very tiny amount present in the product. However, the different colour of various batches of 5 influenced neither the product characteristics (m.p., spectra) nor the yields of the subsequent steps.
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-
-
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15
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0026071803
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Mueller, R.; Philipsborn, W.; Schleifer, L.; Aped, P. and Fuchs, B. Tetrahedron 1991, 47, 1013.
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0026418434
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Trost, B.M. Science 1991, 254, 1471.
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Science
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Trost, B.M.1
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0001513941
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Weisman, G.R.; Ho, S.C.H. and Johnson, V. Tetrahedron Lett. 1980, 21, 335.
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