Wash sale- Sell stock buy bonds?

This would not be a wash sale - bonds are "substantially different" from stocks, even of the same company.

Unless the bonds are convertible to ordinary shares, in which case they may "behave" enough like stock that they would be considered "substantially similar".

Even in that case, if you sold the bonds before the end of the tax year, the wash sale rules would not affect you. All wash sale rules do is transfer the cost basis to the purchased securities, at worst deferring any deductions for the initial loss.