68326-79-4

Upstream product

• 1258388-49-6 (Z)-1-cyclopropyl-1-phenyl-1,3-butadiene 
• 3481-02-5 cyclopropyl phenyl ketone 
• 1560-54-9 allyltriphenylphosphonium bromide 

Downstream Products

• 68326-80-7 (4E,6E)-6-Phenyl-bicyclo[9.2.2]pentadeca-1⁽¹⁴⁾,4,6,11⁽¹⁵⁾,12-pentaene-2,2,10,10-tetracarbonitrile 
• 79976-24-2 5-phenyl-1-p-tolyl-2-octene 
• 79976-25-3 5-phenyl-1-p-tolyloctane 

Relevant academic research and scientific papers

Rh-catalyzed [7 + 1] cycloaddition of buta-1,3-dienylcyclopropanes and CO for the synthesis of cyclooctadienones

Discovering new carbon building blocks is very significant to advance transition-metal-catalyzed cycloadditions for the synthesis of various-sized ring compounds. A new seven-carbon building block from buta-1,3- dienylcyclopropanes (BDCPs) has been developed, showing that, under the catalysis of [Rh(CO)2Cl]2, BDCPs react with CO to give [7 + 1] cycloaddition products, cyclooctadienones. The present [7 + 1] reaction provides an efficient entry to the synthetically challenging eight-membered carbocyclic skeleton, which is present in many natural products of medicinal and biological significance.

Formation of - and Paracyclophane Derivatives in Cycloaddition Reactions

Reactions of tetracyclopropylethylene (1a) and cis-1,2-dicyclopropylstilbene (1b) and its trans isomer (1c) with TCNQ gave 5,6-disubstituted paracyclophane-4,6-dienes (2) in 50-70percent yields.In a similar manner, 1-alkyl- or 1-phenyl substituted 1-c