* FTSEurofirst 300 down 0.6 percent
* Oil stocks lead market lower
* TUI leads travel stocks higher after upgrade
* Reckitt rises after earnings update (ADVISORY- Reuters plans to replace intra-day European and UK stock market reports with a Live Markets blog on Eikon (see cpurl://apps.cp./cms/?pageId=livemarkets for site in development). Adds details, updates prices)
By Danilo Masoni
MILAN, April 18 (Reuters) - European shares fell on Monday, with oil stocks leading the market lower as crude prices tumbled after a meeting by major exporters in Doha collapsed without a deal to freeze output.
The STOXX Europe Oil and Gas index slid 2.2 percent, making it the top sectoral loser. Shares in Royal Dutch Shell , Total and Eni were all down by between 2 percent and 2.7 percent.
A deal to freeze oil output by OPEC and non-OPEC producers fell apart on Sunday after Saudi Arabia demanded that Iran join in despite calls on Riyadh to save the agreement and help prop up crude prices.
"The effects of the Doha talks failure on oil prices and (most of all) on other asset classes are going to be the main focus of today's session," Alessandro Balsotti, portfolio manager at JCI Capital Limited, said in a note.
Mining sector stock slipped 1.3 percent as copper prices were weighed down by the plunge in crude oil prices following the oil deal failure.
The pan-European FTSEurofirst 300 index fell 0.6 percent by 0811 GMT to hit its lowest intraday level since Wednesday, while the Euro STOXX 50 was down 0.8 percent.
Chipmakers such as ARM Holdings and Dialog Semiconductor tumbled with traders linking the drop to a report in the Nikkei business daily saying that tech giant Apple will continue its reduced production of iPhones in light of sluggish sales..
But Reckitt Benckiser rose around 1 percent, topping gainers on the FTSEurofirst, after it reported slightly better than expected quarterly sales and affirmed its full-year forecast.
Travel and leisure stocks rose 0.7 percent, helped by the fall in crude prices. Travel operator TUI was the leading gainer in the industry and was last up 2.3 percent after Berenberg upgraded the stock to buy from hold.
Today's European research round-up
ADVISORY- Reuters plans to replace intra-day European and UK stock market reports with a Live Markets blog on Eikon (see cpurl://apps.cp./cms/?pageId=livemarkets for site in development). In a real-time, multimedia format from 0600 London time through the 1630 closing bell, it will include the best of our market reporting, Stocks Buzz service, Eikon graphics, Reuters pictures, eye-catching research and market zeitgeist. Breaking news and dramatic market moves will continue to be alerted to all clients and we will continue to provide a short opening story and comprehensive closing reports.
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Mike Dolan, Markets Editor EMEA.
Reporting by Danilo Masoni; Editing by Sudip Kar-Gupta/Mark Heinrich