منابع مشابه
Further exploration of the heterocyclic diversity accessible from the allylation chemistry of indigo
Diversity-directed synthesis based on the cascade allylation chemistry of indigo, with its embedded 2,2'-diindolic core, has resulted in rapid access to new examples of the hydroxy-8a,13-dihydroazepino[1,2-a:3,4-b']diindol-14(8H)-one skeleton in up to 51% yield. Additionally a derivative of the novel bridged heterocycle 7,8-dihydro-6H-6,8a-epoxyazepino[1,2-a:3,4-b']diindol-14(13H)-one was produ...
متن کاملA readily accessible PNP pincer ligand with a pyrrole backbone and its Ni(I/II) chemistry.
The novel chelating PNP pincer ligand 2,5-bis((diphenylphosphino)methyl)-1H-pyrrole (1) was prepared and its nickel coordination chemistry explored. The reaction with Ni(COD)(2) led to a diamagnetic dinuclear nickel(I) complex (4) which was also obtained by the reaction of the square planar Ni(II) complexes [(PNP-Ph(2))NiX] (X = Cl (2), X = I (3)) with Li(Et(3)BH).
متن کاملAccessible Elevator
This paper describes an proof-of-concept with the goal of providing new interactions for elevators. By connecting the control unit of the elevator to the ISO/IEC 24752 Universal Remote Console (URC) middleware – the Universal Remote Console (UCH) – we show some examples of alternative and accessible User Interfaces. By this, we achieve not only accessible UIs, e.g., spoken language interfaces, ...
متن کاملBook-keeping
Books are my greatest weakness and collecting them and other printed material is something I have done all of my life. I still spend several hours a week wandering around in bookshops, and the reason I’m late for appointments in Cambridge is that I have a flat above a bookseller with a large stock of remaindered and second-hand books. My passion for the printed word began soon after I learnt to...
متن کاملKeeping scores
Consider a sports competition in which participants alternately perform a scored task (such as the distance a discus is thrown), and a list of the top m scores is updated throughout. We consider the average number and distribution of records among the top m throughout and at the end of the competition. We also answer questions concerning the number of times the list changes, when each change oc...
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ژورنال
عنوان ژورنال: Chemical & Engineering News Archive
سال: 2003
ISSN: 0009-2347,2157-4936
DOI: 10.1021/cen-v081n026.p036