201345-78-0

Upstream product

• 98-59-9 p-toluenesulfonyl chloride 
• 290362-00-4 4-Benzo[1,3]dioxol-5-yl-but-2-yn-1-ol 
• 290361-99-8 acetic acid 1-benzo[1,3]dioxol-5-yl-4-(tetrahydro-pyran-2-yloxy)-but-2-ynyl ester 
• 120-57-0 piperonal 

Downstream Products

• 290362-01-5 acetic acid 1-(4-acetoxy-2-hydroxy-phenyl)-3-benzo[1,3]dioxol-5-ylmethyl-2-methylene-but-3-enyl ester 
• 290362-02-6 acetic acid 4-(3-benzo[1,3]dioxol-5-ylmethyl-2-methylene-but-3-enyl)-3-hydroxy-phenyl ester 
• 158081-97-1 anolignan A 

Relevant academic research and scientific papers

Concise synthesis of anolignan A

An efficient synthesis of anolignan A has been achieved in eight steps in 30% overall yield from piperonal employing TiCl4-mediated addition of a 1-trimethylsilyl-2,3-butadiene to an aldehyde as the key step. (C) 2000 Elsevier Science Ltd.

Preparation of 2-iodo-1,3-butadienes from 1-trimethylsilyl-2,3- butadienes and their functionalizations

Successive treatment of 1-trimethylsilyl-2.3-butadienes with iodine and tetra-n-butylammonium fluoride in the same flask affords 2-iodo-1.3- butadienes in good yields and their palladium-catalyzed carbonylation and alkynylation allows introduction of este