Warning (2): unserialize() [function.unserialize]: Extra data starting at offset 120 of 134 bytes [CORE/cake/libs/cache/file.php, line 190]
Code
                $data = str_replace('\\\\\\\\', '\\', $data);
            }
            $data = unserialize((string)$data);
unserialize - [internal], line ??
FileEngine::read() - CORE/cake/libs/cache/file.php, line 190
Cache::read() - CORE/cake/libs/cache.php, line 362
DataSource::listSources() - CORE/cake/libs/model/datasources/datasource.php, line 237
DboMysqli::listSources() - CORE/cake/libs/model/datasources/dbo/dbo_mysqli.php, line 146
Model::setSource() - CORE/cake/libs/model/model.php, line 777
Model::__construct() - CORE/cake/libs/model/model.php, line 483
ClassRegistry::init() - CORE/cake/libs/class_registry.php, line 142
Controller::loadModel() - CORE/cake/libs/controller/controller.php, line 634
Controller::constructClasses() - CORE/cake/libs/controller/controller.php, line 501
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 186
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): unserialize() [function.unserialize]: Extra data starting at offset 3079 of 3093 bytes [CORE/cake/libs/cache/file.php, line 190]
Code
                $data = str_replace('\\\\\\\\', '\\', $data);
            }
            $data = unserialize((string)$data);
unserialize - [internal], line ??
FileEngine::read() - CORE/cake/libs/cache/file.php, line 190
Cache::read() - CORE/cake/libs/cache.php, line 362
DataSource::__cacheDescription() - CORE/cake/libs/model/datasources/datasource.php, line 475
DboMysqlBase::describe() - CORE/cake/libs/model/datasources/dbo/dbo_mysql.php, line 155
Model::schema() - CORE/cake/libs/model/model.php, line 938
Model::setSource() - CORE/cake/libs/model/model.php, line 789
Model::__construct() - CORE/cake/libs/model/model.php, line 483
ClassRegistry::init() - CORE/cake/libs/class_registry.php, line 142
Model::__constructLinkedModel() - CORE/cake/libs/model/model.php, line 667
Model::__createLinks() - CORE/cake/libs/model/model.php, line 638
Model::__construct() - CORE/cake/libs/model/model.php, line 491
ClassRegistry::init() - CORE/cake/libs/class_registry.php, line 142
Controller::loadModel() - CORE/cake/libs/controller/controller.php, line 634
Controller::constructClasses() - CORE/cake/libs/controller/controller.php, line 501
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 186
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent [CORE/cake/libs/cake_session.php, line 487]
Code
        $iniSet = function_exists('ini_set');
        if ($iniSet && env('HTTPS')) {
            ini_set('session.cookie_secure', 1);
ini_set - [internal], line ??
CakeSession::__initSession() - CORE/cake/libs/cake_session.php, line 487
CakeSession::start() - CORE/cake/libs/cake_session.php, line 230
SessionComponent::__start() - CORE/cake/libs/controller/components/session.php, line 287
SessionComponent::startup() - CORE/cake/libs/controller/components/session.php, line 74
Component::triggerCallback() - CORE/cake/libs/controller/component.php, line 186
Controller::startupProcess() - CORE/cake/libs/controller/controller.php, line 522
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 187
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent [CORE/cake/libs/cake_session.php, line 490]
Code
        }
        if ($iniSet && ($this->security === 'high' || $this->security === 'medium')) {
            ini_set('session.referer_check', $this->host);
ini_set - [internal], line ??
CakeSession::__initSession() - CORE/cake/libs/cake_session.php, line 490
CakeSession::start() - CORE/cake/libs/cake_session.php, line 230
SessionComponent::__start() - CORE/cake/libs/controller/components/session.php, line 287
SessionComponent::startup() - CORE/cake/libs/controller/components/session.php, line 74
Component::triggerCallback() - CORE/cake/libs/controller/component.php, line 186
Controller::startupProcess() - CORE/cake/libs/controller/controller.php, line 522
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 187
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent [CORE/cake/libs/cake_session.php, line 513]
Code
                }
            } else {
                ini_set('session.cookie_samesite', $this->cookieSameSite);
ini_set - [internal], line ??
CakeSession::__initSession() - CORE/cake/libs/cake_session.php, line 513
CakeSession::start() - CORE/cake/libs/cake_session.php, line 230
SessionComponent::__start() - CORE/cake/libs/controller/components/session.php, line 287
SessionComponent::startup() - CORE/cake/libs/controller/components/session.php, line 74
Component::triggerCallback() - CORE/cake/libs/controller/component.php, line 186
Controller::startupProcess() - CORE/cake/libs/controller/controller.php, line 522
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 187
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent [CORE/cake/libs/cake_session.php, line 565]
Code
                if (empty($_SESSION)) {
                    if ($iniSet) {
                        ini_set('session.use_trans_sid', 0);
ini_set - [internal], line ??
CakeSession::__initSession() - CORE/cake/libs/cake_session.php, line 565
CakeSession::start() - CORE/cake/libs/cake_session.php, line 230
SessionComponent::__start() - CORE/cake/libs/controller/components/session.php, line 287
SessionComponent::startup() - CORE/cake/libs/controller/components/session.php, line 74
Component::triggerCallback() - CORE/cake/libs/controller/component.php, line 186
Controller::startupProcess() - CORE/cake/libs/controller/controller.php, line 522
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 187
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent [CORE/cake/libs/cake_session.php, line 566]
Code
                    if ($iniSet) {
                        ini_set('session.use_trans_sid', 0);
                        ini_set('session.name', Configure::read('Session.cookie'));
ini_set - [internal], line ??
CakeSession::__initSession() - CORE/cake/libs/cake_session.php, line 566
CakeSession::start() - CORE/cake/libs/cake_session.php, line 230
SessionComponent::__start() - CORE/cake/libs/controller/components/session.php, line 287
SessionComponent::startup() - CORE/cake/libs/controller/components/session.php, line 74
Component::triggerCallback() - CORE/cake/libs/controller/component.php, line 186
Controller::startupProcess() - CORE/cake/libs/controller/controller.php, line 522
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 187
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent [CORE/cake/libs/cake_session.php, line 567]
Code
                        ini_set('session.use_trans_sid', 0);
                        ini_set('session.name', Configure::read('Session.cookie'));
                        ini_set('session.cookie_lifetime', $this->cookieLifeTime);
ini_set - [internal], line ??
CakeSession::__initSession() - CORE/cake/libs/cake_session.php, line 567
CakeSession::start() - CORE/cake/libs/cake_session.php, line 230
SessionComponent::__start() - CORE/cake/libs/controller/components/session.php, line 287
SessionComponent::startup() - CORE/cake/libs/controller/components/session.php, line 74
Component::triggerCallback() - CORE/cake/libs/controller/component.php, line 186
Controller::startupProcess() - CORE/cake/libs/controller/controller.php, line 522
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 187
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Warning (2): ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent [CORE/cake/libs/cake_session.php, line 568]
Code
                        ini_set('session.name', Configure::read('Session.cookie'));
                        ini_set('session.cookie_lifetime', $this->cookieLifeTime);
                        ini_set('session.cookie_path', $this->path);
ini_set - [internal], line ??
CakeSession::__initSession() - CORE/cake/libs/cake_session.php, line 568
CakeSession::start() - CORE/cake/libs/cake_session.php, line 230
SessionComponent::__start() - CORE/cake/libs/controller/components/session.php, line 287
SessionComponent::startup() - CORE/cake/libs/controller/components/session.php, line 74
Component::triggerCallback() - CORE/cake/libs/controller/component.php, line 186
Controller::startupProcess() - CORE/cake/libs/controller/controller.php, line 522
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 187
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

Mayr's Database Of Reactivity Parameters

AK Prof. Mayr

• Start page

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Details of Molecule (E)-4-(4-nitrophenyl)but-3-en-2-one (in DSMO)

For reactivities of structurally related compounds go to: Electrophiles » C-Electrophiles » Acceptor-Substituted Ethylenes » Other Michael acceptors

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Structure
Molecule class	Electrophiles » C-Electrophiles » Acceptor-Substituted Ethylenes » Other Michael acceptors
Quality
Parameters	E Parameter: -19.36
Comment	Only 1 reference nucleophile was used to determine the E parameter. Determined from a cyclopropanation reaction with an S-ylide.
Sum formula	C10H9NO3
Solvent	DMSO
Reference	J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m

 

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