Two Variations of Solvent‐Reduced Wittig Olefination Reactions — Comparison of Solventless Wittig Reactions to Wittig Reactions under Ultrasonication with Minimal Work‐Up.

Stabilized and semi-stabilized phosphoranes can be subjected to solventless Wittig reactions with carbaldehydes. Simple heating of a mixture of added components at 100 °C in an ele...

AbstractThe synthesis of an olefin from the reaction between a carbonyl compound (aldehyde or ketone) and a phosphonium ylide, via either a betaine and/or oxaphosphetane intermedia...

Carbonyl olefinations are among the most important organic syntheses that form C=C bonds, as they usually have high yields and in addition offer excellent stereoselectivity. Due to...

AbstractThe multistep preparation of trans‐olefins involving the addition of phenylsulfonyl carbanion to aldehydes or ketones to form β‐hydroxysulfones, followed by the esterificat...

Sugar palm (Arenga pinnata) flour has the potential to be developed into nanofibers for use as natural biopolymer materials. Ultrasonication is a promising method for modifying par...

 Isolation, characterization of natural products dimeric amide alkaloids from roots of the Piper chaba Hunter. The synthesis of these products using intermolecular [4+2] cycloaddit...

Solvent resistant membranes are a relatively new technology which has the potential to expand the possible utilities of membranes for process industries. Little is known in terms o...

Based on the Box–Behnken design (BBD) methodology, an experimental study of the preparation of graphene using ultrasonication was conducted. The yield of graphene served as the res...