𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An access control facility for relational data base systems

✍ Scribed by K.D. Sharma; Y.K. Sharma


Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
831 KB
Volume
5
Category
Article
ISSN
0959-2954

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## Abstract A novel heterogeneous copper(I) catalyst system, which is based on readily available poly(ethyleneimine), has been used as a recyclable catalyst for Cu(I) catalyzed β€œclick” 1,3 dipolar cycloaddition reactions of azides and alkynes in organic media. Branched poly(ethyleneimine) was first