Results 51 to 60 of about 15,657 (274)
Beilstein Journal of Organic Chemistry, 2020 Two kinds of [3 + 2] cycloaddition intermediates generated from the three-component reactions of 2-bromobenzaldehydes and maleimides with amino esters or amino acids were used for a one-pot N-allylation and intramolecular Heck reactions to form ...
Xiaoming Ma +6 more
doaj +1 more source
Acetogenic isoquinoline alkaloids. XXIII. Structure of the naphthyl isoquinoline alkaloid dioncophylline A [PDF]
Acta Crystallographica Section C Crystal Structure Communications, 1991 No abstract ...
Bringmann, Gerhard +5 more
openaire +2 more sources
Benzo[de]naphtho[1,8-gh]quinolines: synthesis, photophysical studies and nitro explosives detection
Chimica Techno Acta, 2021 A rational synthetic approach to substituted naphtho[1,8-gh]quinolines using intramolecular cyclization in the presence of potassium in the series of (naphthalen-1-yl)isoquinolines is described. The photophysical properties of the obtained compounds were
Igor L. Nikonov +8 more
doaj +1 more source
Deep K-band observations of TMC-1 with the Green Bank Telescope: Detection of HC7O, non-detection of HC11N, and a search for new organic molecules [PDF]
, 2017 The 100 m Robert C. Byrd Green Bank Telescope K-band (KFPA) receiver was used to perform a high-sensitivity search for rotational emission lines from complex organic molecules in the cold interstellar medium towards TMC-1 (cyanopolyyne peak), focussing on the identification of new carbon-chain-bearing species as well as molecules of possible prebiotic ...
arxiv +1 more source
Synthesis of the isoquinoline alkaloid, crispine C [PDF]
, 2012 The first total synthesis of the isoquinoline alkaloid, crispine C is described in seven steps using a Henry reaction and the Pictet–Gams variant of the Bischler–Napieralski reaction to effect the key ...
Adele Blair +42 more
core +1 more source
(S)norlaudanosoline synthase. the first enzyme in the benzylisoquinoline biosynthetic pathway [PDF]
, 1981 1. introduction Isoquinoline alkaloids form the largest group of alkaloids in the plant kingdom. Numerous publications deal with aspects of the biosynthesis of these compounds in vivo [ 11, while isoquinoline biosynthesis at the cell-free level had ...
Battersby +24 more
core +2 more sources
Beilstein Journal of Organic Chemistry, 2014 An efficient one-pot tandem cyclization/[3 + 2] cycloaddition reaction of N’-(2-alkynylbenzylidene)hydrazides with ethyl 4,4,4-trifluorobut-2-ynoate under silver triflate-catalyzed or electrophile-mediated conditions is described.
Xiaoli Zhou +5 more
doaj +1 more source
Novel 5, 6-Dihydropyrrolo[2,1-a]isoquinolines as Scaffolds for Synthesis of Lamellarin Analogues [PDF]
, 2011 As core skeletons of lamellarins: 5,6-Dihydropyrrolo[2,1-a]isoquinolines are one of the important alkaloids that exhibit significant biological activities, in this study, an efficient synthetic route was described for two novel compounds, 5,6 ...
Hu, Dai Hua +3 more
core +2 more sources
Advanced Materials Technologies, EarlyView.Two n‐type small molecules (DPPPy‐C10‐TN and DPPPy‐C‐Si‐TN) based on alkyl/siloxane‐substituted pyridine flanked diketopyrrolopyrrole (DPPPy) end capped with thienyl naphthalimide (TN) for organic filed effect transistors (OFETs) are reported. Interestingly, bottom‐gate top‐contact OFETs based on DPPPy‐C‐Si‐TN:SEBS blend show a high electron mobility ...
Rajesh Kothandaraman +9 more
wiley +1 more source
Dibenzo[a,g]quinolizin-8-ones: synthesis, estrogen receptor affinities, and cytostatic activity [PDF]
, 1992 A number of acetoxy-substituted dibenzo[a,g]quinolizin-8-ones were synthesized by the reaction of 1-oxoisoquinolines with substituted homophthalic acid anhydride.
Angerer, S. von +4 more
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