Silver, Robin

O-isopropylidene derivative (57) must exist in pyridine solution in a conformation which favors anhydro-ring formation rather than elimination. Considerable degradation occurred when the 5-iodo derivative (63) was treated with silver fluoride in pyridine (36). The products, which were isolated in small yield, were identified as thymine and l-[2-(5-methylfuryl)]-thymine (65). This same compound (65) was formed in high yield when the 5 -mesylate 64 was treated with potassium tert-hx Xy -ate in dimethyl sulfoxide (16). The formation of 65 from 63 or 64 clearly involves the rearrangement of an intermediate 2, 4 -diene. In a different approach to the problem of introducing terminal unsaturation into pento-furanoid nucleosides, Robins and co-workers (32,37) have employed mild base catalyzed E2 elimination reactions. Thus, treatment of the 5 -tosylate (59) with potassium tert-butylate in tert-butyl alcohol afforded a high yield of the 4 -ene (60) (37). This reaction may proceed via the 2,5 ... 

When it was time for field study, Galvin chose the Greater Gila Region, which straddles the New Mexico-Arizona border. He was attracted by the land s beauty and remoteness and the opportunity to study an owl species that was clearly in trouble, as its habitat was systematically being cut down. He moved into a tepee near Luna, New Mexico, and contacted the local office of the U.S. Fish and Wildlife Service to see what the staff could tell him about the spotted owl— scientific research, population studies, habitat maps, whatever they had. One of the office workers groaned and said, Hey, we just had a Freedom of Information Act request on the spotted owl from Dr. Robin Silver over in Phoenix. You know him No Well we just sent him a shitload of documents. Why don t you call him The worker,... 

They would earn meager salaries during the summers on the owl crews and then, when the hooters were idle, survive on unemployment insurance and occasional grants from Robin Silver, allowing... 

IPC Solder Products Value Council White Paper, Round Robin Testing and Analysis of Lead Free Alloys Tin, Silver, Copper, http.V/leadfree. ipc. org/LeadFreeWP006. asp, 2005... 

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