@Entity
public class MProperties implements Serializable {

    private static final long serialVersionUID = 1L;
    @Id
    private Long id;

}

public interface MRepository  {
  MProperties getMProperties ();
}


@Repository
@Transactional
public class MRepositoryImpl implements MRepository {

    @PersistenceContext
    private EntityManager em;

    @Override
    public MRepository getMProperties(){
   }

@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Transactional("order")
public @interface OrderTx {
}

@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Transactional("account")
public @interface AccountTx {
}  

@Configuration
@EnableTransactionManagement
@ComponentScan({
        "ru.repositores"
})
public class AppConfig {

}

@Configuration
@EnableTransactionManagement
public class AppConfig {


// как тут указать что исполняться он будет под @Transactional("account")
 @Bean
 public MRepository mRepository(){
return new MRepositoryImpl();
}

}

@Repository
@Transactional("account")
public class MRepositoryImpl implements MRepository {

    @PersistenceContext(name="accountPersistenceContext")
    private EntityManager em;

    @Override
    public MRepository getMProperties(){
   }

@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Transactional(value = "Custom", readOnly = true)
public @interface CustomTransactional {
    Propagation propagation() default Propagation.SUPPORTED;
}