Yahoo Search Búsqueda en la Web

Resultado de búsqueda

  1. en.wikipedia.org › wiki › NicotineNicotine - Wikipedia

    Hace 20 horas · The first laboratory preparation of nicotine (as its racemate) was described in 1904. [168] The starting material was an N-substituted pyrrole derivative, which was heated to convert it by a [1,5] sigmatropic shift to the isomer with a carbon bond between the pyrrole and pyridine rings, followed by methylation and selective reduction of the pyrrole ring using tin and hydrochloric acid.

  2. Hace 5 horas · Near the end of “Yoshinoya,” a punchy cut from the album Donald Glover has called his last as Childish Gambino, Bando Stone & the New World, he makes a subtle yet pointed observation about the state of the rap ecosystem: “Man, the blog era over, takin’ all our stars.” The first half of the sentence is easy enough to decipher, a reference to a loosely defined but pivotal period in rap ...

  3. Hace 6 horas · SHARE. CINCINNATI — Tee Higgins might've answered plenty of questions about his offseason trade request on Wednesday, but the Bengals star wide receiver did sneak in a joke or two. I asked 25 ...

  4. Hace 20 horas · 17. Part 1: The Jungle cave is brutally attacked by a horde of rampaging pirates: Dirty Beard and his gang are searching for Suzy, a young raccoon pirate, they want to retrieve the treasure map of his father's the Old Jim…. The Jungle Bunch go with Suzy in search of the treasure.