Reaction #71750

ord-18eedcacd95f40249bd7ef511ddea5bd

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Procedure

The same operation as in Example (36a) was performed using 2-ethyl-1,3-dithiane obtained in Example (39a) (3.51 g, 23.7 mmol), n-butyllithium (1.58 M solution in hexane, 18 mL, 28.3 mmol) and ethyl trifluoroacetate (4 mL, 33.6 mmol), to obtain 2.02 g of the title compound as a pale yellow oily substance (35%).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08536197B2uspto-grants-2013_09