In an article, author is Funakoshi, Daichi, once mentioned the application of 706-14-9, Name is gamma-Decanolactone, molecular formula is C10H18O2, molecular weight is 170.2487, MDL number is MFCD00005404, category is tetrahydrofurans. Now introduce a scientific discovery about this category, Recommanded Product: gamma-Decanolactone.
Self-aggregation of zinc bacteriochlorophyll-d analog bearing B-ring reduced chlorin and 17-acrylate residue
As a model of bacteriochlorophyll(BChl)-d specifically found in major light-harvesting antennae (chlorosomes) of photosynthetic green bacteria, zinc methyl 7,8-dihydro-17,18,17(1),17(2)-tetradehydro-bacteriopheophorbide-d was prepared from naturally occurring BChl-a through the double dehydration of the cis-17,18-diol. The synthetic B-ring reduced Zn-BChl-d analog bearing the 17-acrylate residue in tetrahydrofuran exhibited a more bathochromically shifted Soret band in the monomeric state than its counterpart with the 17-propionate residue, while the former’s Qy band slightly moved to a longer wavelength and was somewhat broadened in comparison with the latter’s. Compared with the monomeric bands, the acrylated pigment self-aggregated in 1% tetrahydrofuran and hexane to give more red-shifted and broadened Soret and Qy bands at blue-to-green and far-red regions, respectively, which were similar to the J-aggregates of BChl-d in chlorosomes. By contrast, the propionated pigment remained monomeric under the same conditions. These spectral differences were owing to the 17-substitution effect including the pi-conjugating and electron-withdrawing 17-acrylate residue. (C) 2020 Elsevier Ltd. All rights reserved.
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Reference:
Tetrahydrofuran – Wikipedia,
,Tetrahydrofuran | (CH2)3CH2O – PubChem