Selling on Robinhood and repurchasing in Roth

I want to sell $6,000 worth of shares from my Robinhood account and repurchase the same stocks in my Roth IRA. I was wondering if it’s possible to sell at a loss on Robinhood before the end of the year for taxes and repurchase at the beginning of year in my Roth. I know it’s not typically a legal procedure, but since the Roth is not taxed perhaps there’s a difference?