22882-63-9

Upstream product

• 4637-24-5 N,N-dimethyl-formamide dimethyl acetal 
• 3467-04-7 ent-3α-acetoxygibberell-16-ene-7,19,20-trioic acid 19,20-anhydride 
• 92134-65-1 ent-3α-imidazol-1-ylthiocarbonyloxy-6-epi-gibberell-16-ene-7,19,20-trioic acid 7,19,20-trimethyl ester 
• 186581-53-3 diazomethane 
• 2922-24-9 gibberellin GA₁₃ 
• 106202-96-4 ent-3α-acetoxy-6-epi-gibberell-16-ene-7,19,20-trioic acid 7,20-anhydride 19-methyl ester 
• 3467-04-7 C₂₂H₂₆O₇ 
• 106202-95-3 C₂₃H₃₀O₈ 
• 106203-06-9 ent-3α-hydroxy-6-epi-gibberell-16-ene-7,19,20-trioic acid 19,20-dimethyl ester 
• 38076-27-6 ent-3α-acetoxygibberell-16-ene-7,19,20-trioic acid 7,19-dimethyl ester 
• 79875-83-5 3-acetoxy-7,19-dimethyl ester of gibberellin A₁₃ 20-toluene-p-sulphonyl anhydride 
• 124-41-4 sodium methylate 

Downstream Products

• 130015-08-6 ent-3α,7,19-trihydroxygibberell-16-en-20-oic acid 20-methyl ester 3,7-ditoluene-p-sulphonate 
• 130015-03-1 ent-3,19-dioxo-7-hydroxygibberell-16-en-20-oic acid 20-methyl ester 7-monotoluene-p-sulphonate 
• 130015-02-0 ent-3α,7,19-trihydroxygibberell-16-en-20-oic acid 20-methyl ester 7-monotoluene-p-sulphonate 
• 187738-65-4 C₅₂H₆₁⁽²⁾H₅O₃Si₂ 
• 187738-64-3 C₅₂H₆₂⁽²⁾H₆O₃Si₂ 
• 187738-55-2 C₅₄H₆₉⁽²⁾HO₄Si₂ 
• 187738-54-1 C₅₂H₆₆O₃Si₂ 
• 187738-53-0 C₅₂H₆₈O₃Si₂ 

Relevant academic research and scientific papers

Gibberellins in seedlings and flowering trees of Prunus avium L.

Extracts of acids from mature seeds, germinating seeds, first, second and third year seedlings as well as mature, flowering trees of sweet cherry (Prunus avium L. cv. Stella) were analysed by gas chromatography-mass spectrometry. The presence of the known

The esterification of gibberellins with dimethylformamide dimethyl acetal (DMFDMA)

The key step is to prepare rare gibberellins by converting the more readily available gibberellins (GA3, GA4, GA7 and GA13) into their methyl esters. The DMFDMA is employed as an esterifying reagent to avoid the diazomethane due to its toxic, explosive and hazardous nature. It is observed that DMFDMA apart from esterification can also be used as acetylating and epimerizing reagent.

The Partial Synthesis of 6-epi-Gibberellin A13 and 6-epi-Gibberellin A25 Derivatives

The preparation of 6-epi-GA13 and 6-epi-GA25 derivatives has been carried out from GA13 by epimerization at C-6 through an internal C-7,C-20 anhydride.

Transannular Participation of Some C-19 Esters in Reactions at C-20 of Gibberellin A13

Methanolysis or sodium borohydride reduction of the 3-acetoxy-7,19-dimethyl ester of gibberellin A13 20-toluene-p-sulphonyl anhydride afforded, respectively, the unusual 19-orthoester or epimeric 19-acetals as the major products rather than the products of simple displacement of the 20-toluene-p-sulphonoxy-group.The structure of the 19-orthoester was proven by X-ray analysis.