کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5269874 1385400 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of zinc 20-substituted bacteriochlorophyll-d analogs and their self-aggregation
ترجمه فارسی عنوان
سنتز آنزیم باکتریوکلروفیل-دیاز 20 و آنتی اکسیدان آن ها
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی

Zinc complexes of methyl 31-demethyl-bacteriopheophorbides-d possessing a 2-(un)substituted ethynyl or ethenyl group at the 20-position were prepared through palladium-catalyzed cross-coupling of their 20-bromide with the corresponding alkyne or alkene. The synthetic zinc 20-substituted 3-hydroxymethyl-131-oxo-chlorins self-aggregated in an aqueous micellar solution to give similar large oligomers as self-aggregates of bacteriochlorophylls in the core part of the main light-harvesting antenna of photosynthetic green bacteria. The zinc 20-ethynyl-chlorin fully gave the self-aggregates, but its 202-substitution disturbed the self-aggregation. The 20-(2-phenyl)ethenyl moieties induced the formation of relatively smaller oligomers as well as residual monomers due to their steric bulkiness.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 55, Issue 22, 28 May 2014, Pages 3351-3354
نویسندگان
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