1315334-95-2

Upstream product

• 143323-49-3 (R)-methyl 2-((tert-butoxycarbonyl)amino)-2-(4-hydroxyphenyl)acetate 
• 57591-61-4 methyl (R)-2-amino-2-(4-hydroxyphenyl)acetate hydrochloride 
• 113850-72-9 (R)-N-tert-butoxycarbonyl-3',5'-diiodo-4'-methoxyphenylglycine methyl ester 
• 22818-40-2 D-4-hydroxyphenylglycine 
• 24424-99-5 di-tert-butyl dicarbonate 
• 1315334-93-0 C₃₁H₂₇Br₂NO₅ 
• 1066-54-2 trimethylsilylacetylene 
• 872877-06-0 (R)-N-tert-butoxycarbonyl-4'-hydroxy-3',5'-diiodophenylglycine methyl ester 

Downstream Products

• 1315334-91-8 C₃₅H₂₉NO₅ 

Relevant academic research and scientific papers

Synthesis of hydroxyphenylglycine-derived novel poly(silylenevinylenephenyleneethynylene)s

The hydrosilylation polymerization of d-(-)-p-hydroxyphenylglycine-derived diethynyl monomers 1p and 1m with dihydrosilanes Si1 and Si2 was carried out using RhI(PPh3)3 as a catalyst to give optically active novel poly(silylenevinylenephenyleneethynylene)s [(E)-poly(1p-Si1), (E)-poly(1p-Si2), (E)-poly(1m-Si1), (E)-poly(1m-Si2), and (Z)-poly(1p-Si1)] with number-average molecular weights ranging from 2800 to 17,000 in 41-92% yields. Polymers having (E)- and (Z)-olefin moieties were obtained, wherein the (E)-/(Z)-ratios depended on the reaction conditions. The UV-vis absorption edge of (E)-poly(1p-Si1) was positioned at a wavelength longer than that of (Z)-poly(1p-Si1), indicating that (E)-vinylene-linkage extends the conjugation more largely than the (Z)-counterpart. This was also confirmed by fluorescence spectroscopy. Alkaline hydrolysis of ester moieties of these polymers gave the corresponding polymers having carboxy groups. The (E)-polymers showed different solubility in hydrophobic solvents before and after hydrolysis, but the non-hydrolyzed and hydrolyzed (Z)-polymers exhibited the same solubility.