Synthese von (2‐¹⁴C)Dihydrojasmonsäure

Abstract

515 S y n t h e s e von (2-14C)Dihydrojasmonsaure+)A l f o n s U n v e r r i c h t u n d D i e t e r Gross I n s t i t u t fiir B i o c h e m i e d e r P f l a n z e n d e r Akademie d e r W i s s e n s c h a f t e n d e r DDR, H a l l e ( S a a l e ) , DOR SUMMARY A s h o r t s y n t h e s i s o f ( 2 -1 ' C ) ( L ) -d i h y d r o j a s r n o n i c a c i d f r o m 2pentyl-cyclopent-2-enone and d i e t h y l ( 2 -1 4 C ) m a l o n a t e i s d e s c r i b e d Key w o r d s : ( 2 -1 4 C ) D i h y d r o j a s m o n i c a c i d ; p l a n t g r o w t h r e g u l a t o r

A One Pot Synthesis of Dehydrohedione (DHH) from a Hedione® Precursor

“…For analyses see Supporting information. 10 In our hands, treatment of 7a with AcOH/H 2 O (3.0 mol-equiv. to large excess) at 20 -60°C did not afford 1a.…”

“…An acidic work-up was earlier reported to accelerate the decarbomethoxylation of the remaining traces of the initially uncharacterized putative intermediate 7a. [67], 10 On our side we preferred to perform this reaction quantitatively with 1.0 mol-equiv. of H 2 O in NMP at 155°C.…”

Preparation of Carbon‐14‐Labeled Compounds via Multi‐Carbon Building Blocks of the [ 14 C]Carbon Dioxide Tree

“…This is documented by the preparation of racemic ½2-14 Cjasmonic acid (365, R ¼ (Z)-3-pentenyl) 234 and its 9,10-dihydro derivative (365, R ¼ pentyl) 235 . This is documented by the preparation of racemic ½2-14 Cjasmonic acid (365, R ¼ (Z)-3-pentenyl) 234 and its 9,10-dihydro derivative (365, R ¼ pentyl) 235 .…”