145215-57-2

Upstream product

• 20541-49-5 bis(p-chlorophenyl) diselenide 
• 66385-38-4 5'-tert-Butoxycarbonyl-1,5-dihydro-4-(2-hydroxyethyl)-3,3'-dimethyl-5-oxo-2,2'-pyrromethen-4'-propionsaeure-methylester 
• 145215-56-1 (+/-)-trans-5-[4-[2-(4-chlorophenylselanyl)ethyl]-3-methyl-5-oxopyrrolidin-2-ylidenemethyl]-3-(2-methoxycarbonylethyl)-4-methyl-1H-pyrrole-2-carboxylic acid, tert-butyl ester 
• 145215-53-8 (+/-)-syn-3-(1-methylprop-2-ynyl)tetrahydrofuran-2-one 
• 145215-52-7 (+/-)-syn-3-[2-(2-bromoethyl)-3-methyl-5-(trimethylsilanyl)pent-4-ynoyl]oxazolidin-2-one 
• 145215-55-0 (+/-)-syn-2-[2-(4-chlorophenylselanyl)ethyl]-3-methyl-pent-4-ynoic acid amide 
• 145215-54-9 (+/-)-syn-2-[2-(4-chlorophenylselanyl)ethyl]-3-methyl-pent-4-ynoic acid 

Relevant academic research and scientific papers

New syntheses of the C,D-ring pyrromethenones of phytochrome and phycocyanin

Pyrromethenone 7, the C,D-ring segment of phytochrome (Pr, 4), has been prepared in an efficient fashion employing three new strategies. Each of these has potential advantages for the synthesis of labeled material. Our first approach is related to the Gos

Tetrapyrroles. V. Formal syntheses of the ring-C,D pyrromethenones of phytochrome and phycocyanin

Formal syntheses of pyrromethenones 2 and 3, potential intermediates for the preparation of phycocyanin (5) and phytochrome (4), respectively, have been accomplished by Pd○ mediated coupling of iodopyrrole 7 with acetylenic amides of general st

Syntheses of Bile Pigments, X. Synthesis and Photoisomerization of Racemic Phytochromobilin Dimethyl Ester

Phytochromobilin dimethyl ester (5) which can be isolated from plant chromoprotein phytochrome, but hitherto in insufficient quantities for the elucidation of its structure, has been prepared by total synthesis and fully characterized.On irradiation of 5, dissolved in benzene, only change of configuration at the ethylidene group takes place yielding the thermodynamic unstable Z-isomer 6.Under the same conditions, phycocyanobilin dimethyl ester can also be photoisomerized to its Z-isomer.