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Enantioselective Cycloaddition Reactions Catalyzed by BINOL
Sep 3, 2015 ... realized in this field using chiral BINOL-derived phosphoric acids and N-triflyl ... reactions for the synthesis of complex molecules [1–3]. This [4+2] and ... As such, BINOL-phosphate catalyzed [3+2] cycloadditions have been introduced as a convenient ... acid catalyst with chiral BINOL-phosphates (Figure 2).
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Complete Field Guide to Asymmetric BINOL-Phosphate Derived
Sep 9, 2014 ... Complete Field Guide to Asymmetric BINOL-Phosphate Derived. Brønsted Acid and ... Ion Pairing, and Metal Phosphates ... 1,3-Dipolar Cycloadditions. 9063. 2.1 .5. .... known for over 40 years in organic synthesis, their usage as catalysts ..... sation of the aniline with the aromatic ketone to give an imine.
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Carbon–Carbon Bond Forming Reactions via Photogenerated
Nov 10, 2015 ... Reactions via intermediates are widely used in organic synthesis.1. However, the ..... The radical anions of (hetero)aromatics have an important ... phosphates). .... mainly formed by cyclization, cycloaddition or ring expansion. In ..... butylammonium phosphate (a hydrogen-bond acceptor cata- lyst). Addition ...
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Complete Field Guide to Asymmetric BINOL-Phosphate Derived
Sep 9, 2014 ... Complete Field Guide to Asymmetric BINOL-Phosphate Derived. Brønsted Acid and ... Ion Pairing, and Metal Phosphates ... 1,3-Dipolar Cycloadditions. 9063 .... known for over 40 years in organic synthesis, their usage as catalysts ..... developed the addition of alkyl iodides to aromatic imines 52 using a ...
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Cross coupling reactions in organic synthesis - RSC Publishing
Jul 6, 2011 ... for these reactions, aryl and vinyl phosphates, phosphonates and .... enol phosphate 3 by Perkow (Scheme 1a).14 Although still ... Greater control of the synthesis can be achieved through the .... Diels–Alder cycloaddition to give substituted heterocycles .... affording the branched diene 145 in good yield.
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View PDF Version - RSC Publishing - Royal Society of Chemistry
Apr 16, 2012 ... cate chiral resolution of rac-BINOL6 via synthesis of the racemic hydrogen phosphate derivative (BNP acid).7 This chiral phos- .... chiral metal phosphates derived from BINOL, VAPOL, as well .... and Danishefsky's diene was tested. ... Scheme 10 Asymmetric aromatic cycloaddition catalyzed by Rh2[(R)-.
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Chiral phosphoric acids and alkaline earth metal phosphates
Keywords: Enantioselective synthesis, Pinacol rearrangement, hetero-Diels- Alder reaction,. Mukaiyama-Michael reaction, Phosphoric acid, Chiral metal phosphate, ... for our great discussions on chemistry in the lab and over the party time. ...... that occurred between α,β-unsaturated aldehydes and variety of dienes was.
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PDF (935 K) - NRC Research Press
Diene phosphate 2 reacted efficiently with a number of acyclic a$- ... as valuable methods for the synthesis of highly functionalized ... these types of dienes and the cycloaddition products derived ... Dienyl phosphates such as 1 and 2 represent attractive inter- .... the peri-deshielded aromatic proton, agreed only with the.
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Synthetic methods for (Exo,Exo)- and (Exo-,Endo)-2 - ScienceDirect
... 2445 and aromatic substitution reactions of 1Hyolebuta[de] naphthalenem, ... 275 negiomelactive synthesis of 2- substituted pynidines via Grignard addition to ... daphnanes via high pressure intramolecular reaction of furun dienes, 2229 .... amino sugars via hetero Dials-Alder cycloaddition of enaminacarbaldehydes with  ...
[ 1-s2.0-S0040403900850236-main.pdf?_tid=82423736-2a27-11e4-a302-00000aacb360&acdnat=1408731170_f481ceca6096744f48a3a8b80626c7e4 - Read/Download File

ORGANIC REACTION MECHANISMS 4 1997 - rushim.ru
monitored via the p-nitrophenoxide chromophore produced.3 The reaction has been ... Pyrolysis of the ethylene acetal of bicyclo[4.2.0]octa-4,7-diene-2,3-dione yields a-(2- .... The cycloaddition of formaldehyde and ketene has been studied by ab initio ... Addition of phosphates to chiral sulfinimines derived from aromatic  ...
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Organic Azides - iSites
Dec 13, 2004 ... Thus they are used in cycloadditions, the synthesis of anilines .... In principle, organic azides may be prepared through five .... aromatic and aliphatic azides, acyl azides, and sulfonyl azides .... Synthesis of 1,4-diazido-1,3-dienes 56 and biazirinyls 57. ..... reaction of tris(trimethylsilyl)phosphate with sodium.
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ABT-341 synthesis, 309–310 Acetaldehyde catalytic asymmetric
diene hydrohydroxyalkylation, 374 ... asymmetric synthesis using transaminases, 68–71 importance of, 1 ... Aromatic ketones ... Aza-[3þ3] cycloaddition reaction, 303, 304. Aza-Wittig .... Electrophilic phosphorus(V) species ..... -phosphate, 81.
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Get PDF (2811K) - Wiley Online Library
Acyloxylation, aromatic, 131, 303, 316. POUPS. Subject Index ... to dienes, 256, 457-461, 477-485 ... preparation from selenoxides, 543 protonation ... cycloadditions, 478-479, 481-486, 531 ..... orotidine 5'-phosphate decarboxylase, 67 ... alcoholysis of phosphates, 72-73 .... Desulphonation, via Smiles rearrangement,. 495.
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acids, esterification using carbodiimides 113–115 N-acyl-S,S
adenosine 5-phosphate (A5P) 95 adenosine-5-phosphoric acid amide 95 adenosinetriphosphate (ATP), synthesis of 94. 5-adenylic acid 95 ... aldehydes, aromatic 61 ... cycloaddition reaction of haloketenes with 188 ... cycloaddition 46 –76 .... phosphorus substituted carbodiimides from .... 1,3-diazacyclodeca-1,2- diene 240.
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Get PDF (2062K) - Wiley Online Library
quinine alkaloids, biomimetic synthesis, 197. Aldehydes ... Amines aromatic, reaction with 1,3-dicarbonyl ... Bicyclo[3.2.1]octa-2,6-diene, 502 ... iminoboranes, cycloaddition reactions, 41 1 in aldol ..... Cyclization, using Hg(II)triflatelN,N- dimethyl- .... Enol phosphates, 22 ... Glyceraldehyde 2-phosphate, elimination, 367.
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Get PDF (1587K) - Wiley Online Library
cycloaddition to alkynes 490 ... with aryl phosphorus compounds ... Amines, aromatic, oxidation to quinones ... dienes 488 .... 1,4-Benzoquinone epoxides, synthesis 947 ...... bis-diammoniuni phosphate- ... using mass spectronietry 630.
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Calogeropoulou Theodora
b) Design and synthesis of antiprotozoal ether phospholipids .... phosphonates from vinyl phosphates via a 1,3-phosphorus migration. J. Org. Chem. 1987, 52, 4185. 3. Calogeropoulou, T.; Wiemer, D.F. Cycloaddition reactions of phosphate ..... the Halogenation of Oxygenated Aromatic Compounds” SYNLETT 2011 (11),  ...
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Synthetic Approaches to the Neuraminidase Inhibitors Zanamivir
and Oseltamivir Phosphate (Tamiflu) for the Treatment of Influenza. Javier Magano* ... Synthesis of Oseltamivir Phosphate via an ... Synthesis of Oseltamivir via Three “One Pot” ...... 109 Via a [3 + 2]-cycloaddition which, after N2 extrusion, ... decomposition during the cleavage of the phosphorus-nitrogen ... The aromatic ring.
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Aldrichimica Acta Vol 47 No. 2 - Sigma-Aldrich
Aldrich brand products are sold through Sigma-Aldrich,. Inc. Purchaser must .... Styrenes and Aromatic Alkenes. 2.2. ... 1,3-Dienes. 2.6. ... chiral aldehydes to target-oriented synthesis has long been recognized ... formyl group);12–16 conjugate additions;17–19 cycloaddition reactions;20 ..... pH = 7, phosphate buffer. OH. Me.
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Synthesis of 5-Substituted 1,2,3-Triazolyl-4-phosphonate through
Feb 19, 2016 ... terest in phosphorus compounds has increased as these groups ... dipolar cycloaddition reaction of phosphorylated azides pro- .... phosphate in toluene at 50 °C for 18 h (Table 2). ... to the nature of the substituent on the aromatic ring, such as ... tion led to functional dienes 5, and no polymerization products.
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