765950-03-6

Upstream product

• 55022-46-3 4-methyl-N-prop-2-ynylbenzenesulfonamide 
• 78-84-2 isobutyraldehyde 
• 98-59-9 p-toluenesulfonyl chloride 
• 79157-50-9 <(Ethinyl)(isopropyl)methyl>-methansulfonat 

Relevant academic research and scientific papers

Rhodium-Catalyzed [2+2+2] Cycloaddition Reactions of Linear Allene–Ene–Ynes to afford Fused Tricyclic Scaffolds: Insights into the Mechanism

Allene-(E)-ene-yne N-tosyl-tethered substrates 3 a–3 h were efficiently prepared and their rhodium-catalyzed [2+2+2] cycloaddition reactions were evaluated. The cycloadditions are chemoselective as only the proximal double bond of the allene reacted to af

Enantiocontrolled synthesis of 3-pyrrolines from α-amino allenes

Cyclization of α-amino allenes in the presence of N-bromosuccinimide afforded pyrrolines in good yields. The products were obtained with high enantiomeric excesses when optically active allenes were used as substrates. The synthesis of a 2,5-dehydroprolinol derivative is also presented. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.