80082-35-5

Upstream product

• 16666-80-1 triphenylphosphonio-1-methylethanide 
• 93782-33-3 trans-1-formyl-2-(1-methylethenyl)cyclopropane 
• 90433-70-8 trans-2,6-dimethyl-1-(N-methylphenylsulfonimidoyl)-3,5-heptadien-2-ol 
• 16647-04-4 6-methyl-3,5-heptadien-2-one 
• 90433-72-0 1-(N-methylphenylsulfonimidoyl)-2--2-propanol 
• 137627-91-9 trans-1-acetyl-2-<(phenylseleno)(trimethylsilyl)methyl>cyclopropane 
• 137627-88-4 trans-1-(1-methylethenyl)-2-(1-(phenylseleno)-1-(trimethylsilyl)methyl)cyclopropane 
• 38996-77-9 (+/-)-ethyl trans-2-(2-methyl-1-propenyl)cyclopropane-carboxylate 
• 19493-09-5 Methylenetriphenylphosphorane 
• 24470-78-8 isopropyltriphenylphosphonium iodide 

Relevant academic research and scientific papers

[2+1] Cycloaddition of 1-seleno-2-silylethenes. Selenium-assisted 1,2-silicon shift for cyclopropanation

A novel one-step [2 + 1] cycloaddition synthesis of cyclopropanes has been developed. Reaction of (E)-1-(phenylseleno)-2-silylethenes 1a,b with vinyl ketones 2a-d and acrolein (2e) in the presence of SnCl4 gave cyclopropane products by a formal

Cycloaddition of (E)-1-(Phenylseleno)-2-(trimethylsilyl)ethene. Novel Cyclopropane Ring Formation by a 1,2-Shift of a Trimethylsilyl Group

Reaction of (E)-1-(phenylseleno)-2-(trimethylsilyl)ethene (1) with vinyl ketones 2a-d in the presence of SnCl4 gave cyclopropane products by a formal cycloaddition accompanied by 1,2-silicon migration rather than cycloaddition.

Synthesis and Absolute Configuration of (-)-Rothrockene, a Non-Head-To-Tail Monoterpene

The total synthesis of (-)-rothrockene, trans-1-(1-methylethenyl)-2-(2-methyl-1-propenyl)cyclopropane, and its enantiomer is described.Utilization of (-)-(R)-N,S-dimethyl-S-phenylsulfoximine in the synthesis allowed for resolution of a precursor, regio- and diastereoface selectivity in a Simmons-Smith cyclopropanation, determination of absolute configuration based on X-ray crystallography, and introduction of a side-chain double bond.The absolute configuration of the natural substance is shown to be 1R,2S.

Essential Oil Constituents of Artemisia tridentata rothrockii. The Isolation and Characterizatiuon of two New Irregular Monoterpenes

The neutral pentane extract of the leaves and flower heads of Artemisia tridendata rothrockii was found to contain two new non-head-to-tail monoterpenes, rothrockene (8) and neolyratol (19), in addition to several previously characerized monterpenes.The a