25798-60-1

Upstream product

• 2767-70-6 (p-nitrobenzyl)triphenylphosphonium bromide 
• 75-07-0 acetaldehyde 
• 51042-50-3 4-nitrobenzyltriphenylarsonium bromide 
• 636-98-6 p-nitrobenzene iodide 
• 13154-14-8 1-propenylmagnesium bromide 
• 591-87-7 Allyl acetate 
• 4231-16-7 1-(p-nitrophenyl)-2-nitro-1-propene 
• 69739-34-0 t-butyldimethylsiyl triflate 
• 29865-60-9 1-nitro-4-(2-nitropropyl)benzene 

Downstream Products

• 79750-53-1 (E)-3-(4-nitrophenyl)prop-2-en-1-yl bromide 
• 7743-31-9 <3-(4-Nitrophenyl)-2-propenyl>triphenylphosphoniumbromid 
• 74026-46-3 cis-2,3-Dihydro-3-<2-(4-nitrophenyl)vinyl>-2-phenylfuran 
• 74026-42-9 2-<4-(4-Nitrophenyl)-1(Z),3(E)-butadienyl>-3-phenyloxiran 
• 74026-42-9 2-<4-(4-Nitrophenyl)-1(E),3(E)-butadienyl>-3-phenyloxiran 
• 6159-25-7 1-<(4-nitro)-phenyl>-1,2-propandione 
• 1205-56-7 2-bromo-1-(4-nitrophenyl)propan-1-one 
• 17931-11-2 5-methyl-4-(4-nitrophenyl)-2-phenylthiazole 
• 1734-79-8 3-(4-nitrophenyl)-2-propenal 

Relevant academic research and scientific papers

Sequential Acylation/Silylation/Hetero-Claisen Rearrangement of Nitroalkanes for the Synthesis of Protected Hydroxyoxime Derivatives

Sequential acylation-silylation of nitroalkanes leads to O-silylated α-acyloxyoximes in high yields. The first step of the reaction involves deprotonation of nitro compound with sodium hydride promoted by DBU or alcohol/15-crown-5 system followed by treat

Intermolecular heck-type coupling of aryl iodides and allylic acetates

(Chemical Equation Presented) A palladium-catalyzed arylation of allylic acetates followed by β-acetoxy elimination was shown to produce Heck-type coupling products. Optimal reaction conditions employed ligand-free palladium on carbon in the presence of tetrabutylammonium chloride, a trialkylamine base, and water.

Palladium-catalyzed coupling reaction of alkenylgalliums with aryl halides

Treatment of aryl halides with alkenylgallium dichloride, prepared from GaCl3 and alkenylmagnesium bromide, in the presence of a catalytic amount of palladium provided cross-coupling products in good yields.

THE REACTION OF BENZYLTRIPHENYLARSONIUM YLIDES WITH ALDEHYDES. A NOTE ABOUT THE MECHANISM OF THE WITTIG REACTION.

The products and stereochemistry of the reaction of the benzyltriphenyl arsonium ylide with benzaldehyde and acetaldehyde both in the presence of lithium salts and under salt-free conditions are studied by 1H NMR at 360 MHz.The stereochemistry is discussed in view of recent developments in the mechanistic interpretation of the Wittig and Johnson-Corey-Chaykovsky reaction.

6- and 8?-Ringschlussreaktionen von 2-Oxaheptatrienyl-Dipolen: Synthese von 3-Vinyl-2,3-dihydrofuranen und 2,3(6,7)-Dihydrooxepinen

The thermally induced ring expansion reactions of several butadienyloxiranes are described.The 3(E)-configurated epoxytrienes 11 are transformed predominantly into cis-3-vinyl-2,3-dihydrofurans 15, the trans-isomers 16 being formed as a minor component only with the derivatives a, c, and h.In contrast, thermolysis of the 3(Z)-butadienyloxiranes 12 leads always to a mixture of fivemembered ring products (15/16) and, additionally, dihyrooxepins (17 and 29, resp.).As mechanism of the ring expansion reactions a multistep sequence is proposed with 2-oxaheptatrienyl dipoles as intermediates, which undergo electrocyclisation with participation of either six or eight electrons leading to dihydrofurans and dihydrooxepins, resp.With relation to 1,7-cyclisation reactions of other extended dipole systems the importance of the stereochemistry in the starting materials is emphasised.