Absolute Scales of Photographic and Photovisual Magnitude(en)(7s)

Absolute Scales of Photographic and Phot

Absolute Scales of Photographic and Photovisual Magnitude

✍ Frederick H. Seares 📂 Article 📅 1915 🏛 National Academy of Sciences 🌐 English ⚖ 343 KB

Relation of the Mount Wilson Photographi

Relation of the Mount Wilson Photographic and Photovisual Magnitude Scales

✍ F. H. Seares 📂 Article 📅 1914 🏛 University of Chicago Press 🌐 English ⚖ 286 KB

Stereoselective Double Functionalization

Stereoselective Double Functionalization of Iron-Carbonyl Complexes of 5,6,7,8-Tetramethylidenebicyclo[2.2.2]oct-2-ene. Crystal Structure and Absolute Configuration of (–)-trans-μ-[(2S,5R,7S)-C,5,6,C-η:C,7,8,C-η-(6,7,8-trimethylidene-5-((Z)-2-oxopropylidene)-2-bicyclo[2.2.2]octyl acetate)]-bis(tricarbonyliron)

✍ Enrico Tagliaferri; Philippe Campiche; Raymond Roulet; Raphy Gabioud; Pierre Vog 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 German ⚖ 559 KB

## Abstract The __Friedel__‐__Crafts__ monoacylation of __trans__‐η‐[(1__RS__,2__RS__,4__SR__,5__SR__,6__RS__,7__SR__,8__SR__)‐__C__,5,6,__C__‐η:__C__,7,8,__C__‐η‐(5,6,7,8‐tetramethylidene‐2‐bicyclo[2.2.2]octyl acetate)]‐bis(tricarbonyliron) ((±)‐**5**) is highly stereoselective and yields __trans_