* 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 UKstock 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 tumbledafter a meeting by major exporters in Doha collapsed without adeal 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 bybetween 2 percent and 2.7 percent.
A deal to freeze oil output by OPEC and non-OPEC producersfell apart on Sunday after Saudi Arabia demanded that Iran joinin despite calls on Riyadh to save the agreement and help propup 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 mainfocus of today's session," Alessandro Balsotti, portfoliomanager at JCI Capital Limited, said in a note.
Mining sector stock slipped 1.3 percent as copperprices were weighed down by the plunge in crude oil pricesfollowing the oil deal failure.
The pan-European FTSEurofirst 300 index fell 0.6percent by 0811 GMT to hit its lowest intraday level sinceWednesday, while the Euro STOXX 50 was down 0.8percent.
Chipmakers such as ARM Holdings and DialogSemiconductor tumbled with traders linking the drop toa report in the Nikkei business daily saying that tech giantApple will continue its reduced production of iPhones in lightof sluggish sales..
But Reckitt Benckiser rose around 1 percent, toppinggainers on the FTSEurofirst, after it reported slightly betterthan expected quarterly sales and affirmed its full-yearforecast.
Travel and leisure stocks rose 0.7 percent, helpedby the fall in crude prices. Travel operator TUI was the leadinggainer in the industry and was last up 2.3 percent afterBerenberg upgraded the stock to buy from hold.
Today's European research round-up
ADVISORY- Reuters plans to replace intra-day European and UKstock 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 formatfrom 0600 London time through the 1630 closing bell, it willinclude the best of our market reporting, Stocks Buzz service,Eikon graphics, Reuters pictures, eye-catching research andmarket zeitgeist. Breaking news and dramatic market moves willcontinue to be alerted to all clients and we will continue toprovide a short opening story and comprehensive closing reports.
If you have any thoughts, suggestions orfeedback on this, please email mike.dolan@thomsonreuters.com.
Mike Dolan, Markets Editor EMEA.
(Reporting by Danilo Masoni; Editing by Sudip Kar-Gupta/MarkHeinrich)