Whither Anti-Stalinism?

Abstract

SUMMARY: В своей статье Катлин Смит рассматривает проблему отношения к советскому прошлому и, в частности, к сталинизму в контексте политического развития от перестройки до В. Путина. Смит отмечает изменение отношения к связи истории и идеологии в постсоветский период в России и трудности, связанные с установлением общественного консенсуса о природе нового государства и общества. Рассматривая постельцинскую эпоху, Смит анализирует мотивацию и пути выработки нормализованного образа советского прошлого в новом нарративе государственности.

Generation of Dithianyl and Dioxolanyl Radicals Using Photoredox Catalysis: Application in the Total Synthesis of the Danshenspiroketallactones via Radical Relay Chemistry

“…features, ranging from polyols, spiroketals, and polyene macrolides to polypropionate scaffolds, and as such has been a recent theme in our laboratory. 3 The multicomponent ARC union protocol relies on [1,4]-Brook rearrangements 4 wherein an initially generated alkoxy anion can be triggered to undergo in situ 1,4-silyl group migration to afford a new carbanion (Scheme 1a), which in turn can be readily trapped by diverse electrophiles. The resulting coupled products provide ample bandwidth for downstream functionalization to furnish various 1,3,5-polyol motifs.…”

“…Recently, radical relay chemistry has been developed to functionalize remote C(sp 3 )-H bonds via 1,5-hydrogen atom transfer (1,. 6 For example, initially generated alkoxyl 6a-c or aminyl radicals 6d-f are known to undergo in situ 1,5-or 1,6-HAT to furnish carbon radicals via a photoredox catalysis cycle.…”

“…16b In both the original isolation paper 12 and the Brimble synthesis, a mixture of 4 and 5 was obtained without further separation. Here, we record the total synthesis of the danshenspiroketallactones 4 and 5 utilizing [1,5]-radical relay chemistry, wherein the generation and functionalization of the dioxolanyl radical plays a key role in the construction of the 1,4,7-polyol precursor (8k, Scheme 5). Noteworthy here, the pure format of 4 and 5 were obtained with high performance liquid chromatography (HPLC).…”