86948-31-4

Upstream product

• 77912-26-6 C₂₆H₃₁BrO₅S 
• 54878-67-0 7α,13-dihydroxykaurenolide 
• 98-58-8 4-bromobenzenesulfonyl chloride 
• 15959-13-4 7α-hydroxykaurenolide 
• 5691-63-4 7-hydroxykaurenolide 
• 19018-46-3 7β,13-dihydroxykaurenolide 
• 86948-30-3 13-hydroxy-7-oxokaurenolide 

Downstream Products

• 85344-33-8 13-hydroxygibberellin A₁₂-7-aldehyde 

Relevant academic research and scientific papers

Preparation of 13-Hydroxygibberellin A12-7-Aldehyde

7β- and 7α-Hydroxykaurenolides have been efficiently 13-hydroxylated by cultures of Rhizopus arrhizus.The products have been chemically converted into the title compound.In an alternative preparation, gibberellin A12-7-aldehyde, gibberellin A12-7-aldehyde (prepared from 7β,18-dihydroxykaurenolide), and gibberellin A12-7-aldehyde (prepared, by hydrogen-tritium exchange, from gibberellin A12-7-aldehyde), have been 13-hydroxylated by cultures of Rhizopus arrhizus to give the unlabelled and the - and -labelled title compound. 13-Hydroxylation of gibberellin A12-7-alcohol by cultures of Rhizopus arrhizus, followed by oxidation, also gave 13-hydroxygibberellin A12-7-aldehyde.