Wondering if you can help me guys, I'm new to using bitcoins and recently downloaded Bitcoin Core to my MacBook. I stupidly sent bitcoins to my wallet without realising i had to sync first, but it's been syncing for a week now and still has 1 year 46 weeks to go. It's barely altered in 2 days so i've given up waiting and have been using blockchaininfo's online wallet, so I want to get those bitcoins transferred to there if possible.
I've read the threads about exporting the private key, but the problem is I don't know the passphrase to access it as i was never prompted to create one, I just installed it and started syncing. Also, Blockchain's 'desktop sync' feature that people have mentioned doesn't appear anywhere in my account, so i can't do that either. Is there any other way of doing it?