I had no sooner got back to the kitchen than the doorbell rang loud enough to wake the dead.
= I had hardly got back to the kitchen when the doorbell rang loud enough to wake the dead.
= No sooner had I got back to the kitchen than the doorbell rang loud enough to wake the dead.
= Hardly had I got back to the kitchen when the doorbell rang loud enough to wake the dead.
= As soon as I got back to the kitchen,the doorbell rang loud enough to wake the dead.
= The doorbell rang loud enough to wake the dead as soon as I got back to the kitchen.
= The doorbell rang loud enough to wake the dead the moment/minute/second/instant I got back to the kitchen.
= The doorbell rang loud enough to wake the dead directly/immediately I got back to the kitchen.
= On/Upon my/me getting back to the kitchen,the doorbell rang loud enough to wake to the dead.
还可以把上述所有变化中的 rang loud enough to wake the dead 换写成 rang so loud that it could wake the dead 或 rang so loud as to wake the dead.
另注：/ 表示可以任意选用其一.