take a new look at the nitroparaffins - C&EN Global Enterprise (ACS

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ίΐιτι onarattins SYNTHESIS OF OTHER CHEMICALS 1 · Nitroesters — esterifîcation of nitrohydroxy compounds made from NP's and aldehydes. 2 . Nitro-olefms—treatment o f nitroesters with sodium carbonate (see above) or condensing p r i mary NP's with aromatic aldehydes. 3 . N i t r o a m i n e s — f r o m NP's, formaldehyde, and amines b y Mannich reaction. 4 . Diamines—>(a) reduction o f nitroamines (see above), and (b) reduction of dinitroparaffinsmade by condensing nitroparaffins with ketones, or reacting chloronitroparaffins with alkali salt of an NP. 5 · Cyclic N i t r o a l c o t i o l s — condensing primary nitroparaffins with cyclohexanone.

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SELECTIVE SOLVENT

6 . Alkyl Hydroxylamines— formed b y mild reduction of p r i mary nitroparaffins. 7 · Heterocyclic N i t r o h y d r o x y Derivatives'—prepared by condensing heterocyclic a l d e hydes with an NP. 8 . B e t a - D i o x i m e s —condensing three molecules of an NP in presence o f a weak base. 9· Trialkyl Isoxazoles — hydrolysis of Beta-Dioximes (see above). 10. N - A l k y l H y d r o x y l a m i n e s —mild reduction of primary MP's. 1 1 . A l k y l i d e n e Succinic Esters—condensing NP's w i t h alpha beta unsaturated acid esters.

EXTRACTION

Separation o f aromatic a n d aliphatic hydrocarbons

AZEOTROPIC

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Separation o f styrène from other aromatic hydrocarbons

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