QuestionOrganic / boronate (Marshall) fragmentation
The major product formed in the following reaction sequence is :


- (a) trans-Decalin alcohol with OH β (wedge) at the former alkene carbon, OSO₂Me retained
- (b) trans-Decalin alcohol with OH α (hash) at the former alkene carbon, OSO₂Me retained
- (c) (E,E)-1,6-cyclodecadiene with one Me on a ring alkene carbon and a gem-dimethyl group
- (d) (E,Z)-1,6-cyclodecadiene with one Me on a ring alkene carbon and a gem-dimethyl group
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