Use of cyclopropanes and their derivatives in organic synthesis

As the syntheses of cyclopropane derivatives can be accomplished by several highly efficient procedures, these derivatives have emerged as important interm...

HNC Wong，MY Hon，CW Tse，... - 《Chemical Reviews》

Use of cyclopropanes and their derivatives in organic synthesis

As the syntheses of cyclopropane derivatives can be accomplished by several highly efficient procedures, these derivatives have emerged as important interm...

HNC Wong，MY Hon，CW Tse，... - 《Chemical Reviews》

Transition-metal catalyzed decomposition of aliphatic diazo compounds — New results and applications in organic synthesis

No Abstract available for this paper.

Maas，Gerhard - Springer Berlin Heidelberg

Synthesis and some properties of gem-dichlorocyclopropane carboxaldehyde acetals and cyclopropane carboxaldehyde acetals

α,β-Unsaturated aldehyde acetals add :CCl 2 (obtained in accordance with Makosza procedure) to form gem-dichlorocyclopropanecarboxaldehyde acetals ( 1) in high yields when the ratio of reactants is no less than 1:4. The addition of :CC...

AK Khusid，GV Kryshtal，VA Dombrovsky，... - 《Tetrahedron》

ChemInform Abstract: Use of Cyclopropanes and Their Derivatives in Organic Synthesis

α,β-Unsaturated aldehyde acetals add :CCl 2 (obtained in accordance with Makosza procedure) to form gem-dichlorocyclopropanecarboxaldehyde acetals ( 1) in high yields when the ratio of reactants is no less than 1:4. The addition of :CC...

HNC Wong，MY Hon，CW Tse，... - 《Cheminform》

Additions and Corrections-The Nature of the Intermediate in Carbonium Ion-type Interconversion Reactions of Cyclobutyl, Cyclopropylcarbinyl and Allylcarbinyl Derivatives

The striking ease of interconversion of cyclobutyl and cyclopropylcarbinyl derivatives in carbonium ion-type reactions and the abnormally large solvolytic reactivities of cyclobutyl and cyclopropylcarbinyl halides and sulfonate esters ha...

Roberts, John，Mazur, Robert - 《Journal of the American Chemical Society》

Small-ring Compounds. XXIII. The Nature of the Intermediates in Carbonium Ion-type Interconversion Reactions of Cyclopropylcarbinyl, Cyclobutyl and Allylcarbinyl Derivatives

Investigation of the extent of isotope-position rearrangement in carbonium ion-type reactions of 14C-labeled cyclopropylcarbinyl derivatives has revealed that the three methylene groups of the starting material achieve a striking degree ...

RH Mazur，WN White，DA Semenow，... - 《Journal of the American Chemical Society》

ChemInform Abstract: ASYMETRIC SYNTHESES WITH THE AID OF CHIRAL OXAZOLIDINE DERIVATIVES OF EPHEDRINE. PREPARATION OF CHIRAL FORMYL CYCLOPROPANES

)-Ephedrin (II) kondensiert mit dem Phenylcyclopropan-aldehyd (I) zu den isom.eren Oxazolidinen (III) und (IV).

H Abdallah，R Gree，R Carrie - 《Cheminform》

Small-Ring Compounds. VIII. Some Nucleophilic Displacement Reactions of Cyclopropyl, Cyclobutyl, Cyclopentyl and Cyclohexyl p-Toluenesulfonates and Halides

A study has been made of the rates and products of some nucleophilic displacement reactions of cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl p-toluenesulfonates and halides. The solvolysis reactivity sequence of the p-toluenesulfon...

JD Roberts，VC Chambers - 《Journal of the American Chemical Society》

A CONVENIENT METHOD FOR THE PREPARATION OF δ-ALKOXY-α,β-UNSATURATED ALDEHYDES BY REACTION OF ACETALS WITH 1-TRIMETHYLSILOXY-1,3BUTADIENE

In Gegenwart von TiCl 4 setzen sich die ungesttigten Acetale (Ia) mit l-Trimethylsiloxy-1 ,3-bu tadien (II) zu den α,β-ungesttigten Aldehyden (III) um.

T Mukaiyama，A Ishida - 《Chemischer Informationsdienst》